I never expected something as simple as asking my sister not to smoke around me to turn into a serious family argument, but somehow it became one of the biggest disagreements we have ever had. My sister has been smoking for several years, and while I have never tried to control what she does with her own body, I have always hated being around cigarette smoke. The smell gives me headaches, makes it difficult for me to breathe comfortably, and generally makes me want to leave the room. I have asked her several times to smoke outside whenever I am visiting, but she usually treats my requests like I am being overly sensitive. She would tell me that she was only smoking one cigarette, that the window was open, or that I could simply sit farther away. I tried to avoid arguing because I did not want our relationship to become a constant fight over smoking. Unfortunately, things became much more complicated because my sister has serious allergies herself. Certain smells, chemicals, and environmental triggers can make her feel extremely uncomfortable, and she has always been very careful about avoiding the things that cause her reactions. I eventually realized that she understood perfectly well how unpleasant it was to be exposed to something your body reacts badly to. That gave me an idea, although looking back, I am not sure whether it was clever or completely out of line.

The situation that finally pushed me over the edge happened during a family gathering at my parents’ house. My sister knew I was going to be there, and everyone was sitting together in the living room after dinner. At some point, she pulled out a cigarette and started smoking near an open window. I immediately asked her if she could please go outside because the smoke was drifting directly toward me. She rolled her eyes and said I was being dramatic. I reminded her that I had asked her many times before, and I told her that I was not asking her to stop smoking permanently, only to step outside while I was there. Instead of listening, she laughed and said that if the window was open, there was no reason for me to complain. I moved to another room, but a few minutes later she came in and continued smoking near the doorway. That was when I finally lost my patience. I told her that if she would be furious if someone knowingly exposed her to something that triggered her allergies, then she should understand why I was asking her to respect my boundary. She immediately became defensive and said her allergies were completely different because they were a real medical issue, while I was simply complaining about cigarette smoke. I told her that she did not get to decide whether something made me uncomfortable just because she considered her own problem more serious.

After that conversation, I started thinking about how I could get her to understand what I was saying without having the same argument every single time. A few days later, she came over to my apartment and, as usual, wanted to smoke inside. I told her no, but she ignored me and lit a cigarette anyway. I asked her to put it out, and she refused. That was when I decided to use her own allergy situation against her. I opened a drawer where I knew I had a strongly scented cleaning product and deliberately brought it into the room. I did not spray it on her or do anything dangerous, but I placed it nearby and said, “Since you think people should just tolerate things that make them uncomfortable, I guess you won’t mind this.” She immediately recognized the smell and became uncomfortable. She asked me to move it away because strong fragrances can trigger her allergies. I looked at her and said that this was exactly the point I had been trying to make about cigarette smoke. She got extremely angry and accused me of intentionally triggering a medical condition just to prove an argument. I told her I had not actually sprayed anything on her and that I only wanted her to understand how frustrating it felt when someone knowingly ignored a boundary involving something your body reacts badly to. She eventually took her cigarette outside, but she left my apartment furious and told me I had crossed a line.

The next day, my sister told our parents what happened, and naturally she described the situation in the worst possible way. According to her, I had deliberately used her allergies as a weapon because I wanted to punish her for smoking. My parents called me and asked why I would ever intentionally expose my sister to something that could make her sick. I explained that I did not expose her to a dangerous substance and that I had only used a smell she had previously complained about to make a point. I also explained that I had spent months politely asking her not to smoke around me and that she repeatedly ignored me. My mother said that none of that justified what I did. She told me that if cigarette smoke bothered me, I should simply leave the room instead of trying to make my sister uncomfortable. That frustrated me because it seemed like everyone was focusing on my reaction while ignoring the fact that my sister had repeatedly refused to respect a very simple request. I told them I was not trying to control her smoking habits. If she wanted to smoke outside, on her balcony, or somewhere else, that was completely her choice. I only wanted the freedom to exist in a shared space without having cigarette smoke blown directly toward me. My father understood that part, but he still said that deliberately using someone’s allergies to make a point was immature and unnecessary.

My sister and I eventually sat down and talked about the situation without the rest of the family involved. She told me that she felt betrayed because she believed I knew how serious her allergies could be and still chose to make her uncomfortable. I admitted that I understood why she felt that way, but I also told her that I felt the same way whenever she smoked around me after I had clearly asked her not to. I explained that the purpose of what I did was not to hurt her or make her sick. I wanted her to experience, for a brief moment, what it felt like when someone knowingly ignored a physical boundary. She said there was still a major difference because she could not always control her allergies, whereas I could simply walk away from cigarette smoke. I agreed that her allergies were not something she could control, but I pointed out that she could control where she smoked. That seemed to make her pause. She admitted that she had become used to smoking wherever she wanted and had started treating my requests as minor complaints rather than an actual boundary. I apologized for deliberately using her allergies to make my point, but I also told her that I needed her to apologize for repeatedly ignoring my requests. Neither of us completely agreed with the other’s behavior, but eventually we both admitted that the situation had been handled badly.

Since then, we have actually created a much simpler rule. If I am visiting her or she is visiting me, she does not smoke indoors or around me. If she wants to smoke, she goes outside, and I do not comment on it or lecture her about smoking. In return, I promised that I would never intentionally use her allergies against her again, even if I am angry or feel like she is ignoring me. Looking back, I probably could have handled the entire situation much better. I could have simply told her that if she smoked indoors, I would leave, and then actually followed through every time. Instead, I chose to make a point in a way that I knew would get an emotional reaction from her. I still believe my underlying frustration was completely reasonable, but I am not sure the way I expressed it was. Some members of my family think I was completely out of line and that allergies should never be used as a comparison or demonstration. Others understand why I became frustrated after repeatedly asking her to smoke somewhere else. My sister and I are on better terms now, and she has mostly respected the new boundary. Still, I keep wondering whether I was the asshole for using something as personal as her allergies to finally make her understand how I felt.

So, AITA for using my sister’s allergies against her to make her stop smoking around me?

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AITA for using my sister’s allergies against her so she would stop smoking around me

So with the holiday season upon us I have been seeing a lot of my family, and have been going to my parents house.

Their house is on a few acres of property and they have two horses that I like to pet and feed while I’m there.

Now here is where the problem comes in my sister likes call her Lily she’s a smoker that’s here call but I don’t like being near it and she knows that.

But every time I go out to the horses she decides to follow me and start smoking right by me.

I’ve tried talking to her asking her to just tell me when she is going to smoke so I can avoid her I have pointed out to her that my father built a little smoking area on the property since my mother hates the smell.

But all the same it is always Lily smoking next to me by the horses.

So I got fed up with days of this and decided to do something, Lily is allergic to dogs in the sense of watery puffy eyes and a sore throat if she’s around them.

Since Lily moved out my parents got a dog a golden retriever great girl she’s named Venus.

So yesterday I went out to the horses to feed them and play them but this time I brought Venus with me and when Lily showed up to smoke she stood back asking me why Venus was with me and that she’s allergic.

I told her that I liked Venus and wanted to play with her plus it would keep Lily away then I pointed to the smoking area (a bench with a wooden awning over it) and told her she could use the smoking area if she didn’t want to be around Venus.

Lily got mad cursing at me and my siblings took her side saying I could have just moved when she started to smoke but my parents took my side saying that there’s a smoking area for a reason and that I did nothing wrong in my handling of this.

So now I’m here a few hours before I go back to my parents house for Christmas dinner and want to ask AITA for using Lily’s allergies to get her to stop smoking around me.

When My Sister’s Smoking Became a Family Problem

I never imagined that a disagreement over smoking would eventually turn into a situation where almost all of my siblings were angry with me. The original problem was actually pretty simple. My sister smokes, and she has a habit of smoking whenever she feels like it, even when other people are around. I have never tried to tell her that she needs to quit because I know that is her decision, but I have repeatedly asked her not to smoke around me. Cigarette smoke bothers me a lot, and being trapped in a room with it makes me uncomfortable. Unfortunately, my sister never seemed to take that request seriously. She would tell me that I was being dramatic, open a window, or move the cigarette slightly away from me as if that solved everything. What made the situation more frustrating was that my sister has allergies of her own. She is very particular about certain smells and substances because some of them can trigger unpleasant reactions for her. Everyone in our family knows this and generally tries to accommodate her. Over time, I started wondering why my family expected everyone to respect her physical boundaries while my own requests were treated like an inconvenience.

My sister and I have always had a complicated relationship. We are not enemies, and there have been plenty of times when we have gotten along perfectly well, but she can be extremely stubborn. When she decides that something is not a big deal, convincing her otherwise is almost impossible. She has always had a personality where she assumes that if something does not bother her, it should not bother anyone else either. This became especially obvious when it came to smoking. She would smoke while watching television, during family gatherings, on the porch, and sometimes even near the kitchen while people were eating. If someone complained, she would simply say that the smell would disappear quickly. I tried not to make every family visit into an argument, so most of the time I would quietly move somewhere else. However, there were occasions when there was nowhere else to go, especially when we were all sitting together in a small room. I would politely ask her to go outside, and she would act as though I had asked her to give up smoking completely. Eventually, I stopped asking because I was tired of hearing the same excuses.

The incident that caused everything to explode happened at a family gathering at my parents’ house. Several of my siblings were there, along with their partners and children, and everyone was spending the afternoon together. My sister went outside for a while and came back in with a cigarette already lit. She sat down near me and started smoking. I immediately asked if she could please take it outside. She looked at me and said, “Seriously? It’s one cigarette.” I told her that I knew it was only one cigarette, but I still did not want to sit in the smoke. She laughed and said there was an open window nearby. I pointed out that the smoke was literally coming toward me, but she shrugged and continued smoking. One of my brothers noticed the argument and told me to just move to the other side of the room. I did, but I was already frustrated because it felt like I was once again the person expected to adjust. My sister did not even acknowledge that she had ignored my request. Instead, she continued her conversation with everyone else as though nothing had happened.

What made me especially angry was that earlier that same day, my sister had complained about a scented candle someone had brought into the house. She immediately asked them to put it away because strong fragrances can trigger her allergies. Everyone jumped into action. My mother moved the candle, my brother opened another window, and someone even apologized for not realizing it would bother her. I remember sitting there thinking about the irony. When something affected my sister physically, everyone immediately took it seriously. When cigarette smoke bothered me, I was expected to move. I did not say anything at the time because I knew bringing it up would start another argument. But I could not stop thinking about it. I felt like there was a double standard in our family. I understood that allergies could be serious, and I would never intentionally expose someone to something that could cause a dangerous reaction. At the same time, I felt my sister was using her allergies as proof that people should respect boundaries while refusing to respect mine.

A few weeks later, the same thing happened at my apartment. My sister came over to visit, and at some point she asked if she could smoke inside. I told her that I did not allow smoking indoors. She said she would sit near the open balcony door. I repeated that I still did not want cigarette smoke inside my apartment. She became annoyed and said I was making things difficult for no reason. Eventually, she went outside, but she spent the next twenty minutes complaining about how inconvenient it was. When she came back in, she said that I was treating her like a child. I told her I was not controlling her smoking; I was simply asking her to smoke outside my home. She responded that I should be grateful she was even willing to go outside. That comment really bothered me because it made it clear that she considered respecting my boundary some kind of favor to me.

After that, I started keeping my distance whenever she smoked. I did not want another confrontation, so I simply avoided sitting near her. My siblings noticed but mostly stayed out of it. One of them even told me privately that my sister could be annoying sometimes, but they did not want to get involved because they knew she would become defensive. I understood that. Family arguments have a way of becoming much bigger than they need to be. Still, I was frustrated that everyone seemed to recognize her behavior but nobody wanted to say anything. My sister continued making jokes about my sensitivity, and occasionally she would deliberately smoke near me and then laugh when I moved away. I could not tell whether she genuinely thought it was funny or whether she knew exactly what she was doing. Either way, it was getting exhausting. I finally decided that instead of repeatedly arguing with her, I needed to find a way to make her understand what I was trying to say.

That was when I made the mistake that eventually caused the entire family to turn against me. My sister had previously told me that certain strong scents bothered her allergies. I knew which type of smell she disliked because she had mentioned it many times. During one visit, she started smoking inside despite knowing that I had already asked her not to. I told her once again that I was uncomfortable, but she ignored me. Instead of arguing, I went into another room and brought out a strongly scented product that I knew she disliked. I did not spray it directly on her, and I did not intentionally try to cause an allergic reaction. I simply placed it nearby and said, “You don’t like this smell, right? Imagine if I kept using it around you after you asked me to stop.” My intention was to make a point about boundaries. I wanted her to understand that when someone tells you something physically bothers them, you should not dismiss them just because you personally do not experience the same reaction.

Unfortunately, my sister immediately became furious. She told me that I had deliberately used her medical condition against her and that what I had done was cruel. I told her that I had not sprayed anything on her and that she was not having an allergic reaction. I was trying to demonstrate what it felt like to have someone knowingly ignore a physical boundary. She said there was a huge difference between her allergies and my dislike of cigarette smoke. I responded that she was missing the point. I was not saying that cigarette smoke and allergies were medically identical. I was saying that both situations involved a person asking someone else to stop exposing them to something they did not want around them. She told me that I had crossed a line by intentionally choosing something I knew she was sensitive to. At that point, I realized the conversation was going nowhere, so I apologized and asked her to leave if she was that angry.

She did leave, but she apparently called one of our siblings before she even got home. Within a few hours, I started receiving messages from different members of my family. My brother asked me what I was thinking. My sister had told everyone that I intentionally triggered her allergies to punish her for smoking. I explained my side, but by then the story had already become much more dramatic than what actually happened. My sister told our parents that I had used her medical condition as a weapon. She said she could not believe that her own sibling would deliberately target something she struggled with just to win an argument. Hearing that description made me feel like a terrible person because that was not what I believed I had done. I knew I had acted deliberately, but I had never intended to make her sick. I wanted her to understand the principle behind my frustration. Still, I could see why the situation looked bad from the outside.

My parents called me that evening and asked me to explain everything. I told them exactly what happened, including the fact that I knew the smell bothered my sister and intentionally brought it into the room. I did not try to hide that part because I knew lying would only make things worse. My mother immediately told me that I was wrong. She said that regardless of how annoying my sister had been, deliberately using someone’s allergy against them was not acceptable. My father agreed that my sister should have respected my request not to smoke around me, but he also said that two wrongs did not make a right. I told them I understood that, but I wanted them to acknowledge that my sister had repeatedly ignored my boundaries. My mother said she understood my frustration, but she could not support the way I handled it. I left the conversation feeling like nobody cared about what had led me to that point.

The next day, things became even worse because my siblings started discussing the situation in our family group chat. One of my sisters said I had behaved cruelly and that there was no excuse for intentionally using a medical issue against another person. Another sibling said that my sister should have simply gone outside to smoke, but that did not justify what I had done. I tried to explain that I was not proud of my decision and that I had already apologized. However, they kept telling me that I needed to take full responsibility instead of making excuses. That phrase annoyed me because I felt like I was already taking responsibility. I admitted what I had done. I apologized. I never claimed that my behavior was perfect. What I wanted was for them to acknowledge that my sister’s behavior had contributed to the situation instead of treating the entire conflict as if it had started with me.

Eventually, my sister and I had a private conversation. She told me that she was hurt more than angry because she believed I knew how uncomfortable her allergies could make her. I told her that I understood that, but I was also hurt because she knew how strongly I disliked being around cigarette smoke and still ignored my requests. She said that she believed I was exaggerating my discomfort because I had never complained enough to make it seem serious. I reminded her that I had asked her politely dozens of times. She admitted that she remembered those conversations but thought I was just being sensitive. That admission actually changed the way I looked at the entire situation. She had not misunderstood me. She had simply decided that my discomfort was less important than her convenience. I told her that was exactly why I eventually became so frustrated. She said that did not excuse what I did, and I agreed.

We then talked about the allergy incident itself. I told her I was sorry for deliberately using something I knew bothered her. I admitted that I had been angry and wanted her to experience, even briefly, what it felt like when someone dismissed a physical boundary. She told me that she understood the point better now, but she still believed I had chosen the wrong way to make it. I agreed with her. Looking back, I could have simply told her that if she smoked inside my apartment, I would ask her to leave. I could have stopped attending gatherings where she smoked. I could have established a clear consequence instead of trying to make her feel what I felt. I told her I regretted escalating things. She apologized too, although she was clearly uncomfortable admitting that she had been disrespectful toward me for a long time.

The hardest part was realizing that my siblings were not necessarily defending her smoking. Most of them actually agreed that she should not smoke around people who asked her not to. What they were angry about was the method I chose. One brother told me, “You had every right to be angry, but you deliberately picked the one thing you knew would upset her.” I could not really argue with that. Another sibling said that if I had simply enforced my own boundary, nobody would have had much to criticize. I knew they were probably right. Instead of controlling what my sister did, I should have controlled what I was willing to tolerate. That meant leaving a room, ending a visit, or asking her to leave my home. I had focused so much on making her understand my frustration that I forgot I did not actually need her agreement in order to protect my own boundaries.

At the same time, I was still bothered by how the family treated the original smoking problem. I asked my siblings whether they would consider it acceptable if someone kept smoking around them after they repeatedly asked them not to. Most admitted that they would be annoyed. I then asked why they thought I should simply tolerate it. One sibling said they did not think I should tolerate it, but they believed I needed to handle it differently. That distinction helped me understand their perspective. They were not necessarily saying my feelings were invalid. They were saying that being justified in your frustration does not automatically justify every reaction you have because of that frustration. It was an uncomfortable lesson, but probably one I needed to hear.

My sister eventually agreed to stop smoking around me. She did not quit smoking, and I never asked her to. She simply agreed that when I was visiting, she would smoke outside or wait until I was gone. At my apartment, the rule became even simpler: no smoking indoors, period. I told her she was welcome to smoke outside, and she said she could live with that. Surprisingly, once we established clear rules, most of the tension disappeared. We did not need to keep arguing about whether cigarette smoke bothered me. We both knew what the boundary was. If she wanted to smoke, she went outside. If I did not want to be around her while she smoked, I stayed inside. It was honestly much easier than all the arguments we had previously had.

However, some damage had already been done between me and my siblings. A few of them remained distant for several weeks because they believed I had shown a side of myself they did not like. I understood why they felt that way, but I also felt they were judging me based on one bad decision without considering the months of frustration that came before it. I did not want to make excuses, so I stopped trying to convince everyone that I was completely right. Instead, I simply acknowledged that I had handled the situation badly. At the same time, I refused to apologize for wanting people to respect my boundaries. Those were two separate things. I could admit that my reaction was wrong without pretending that my sister had behaved perfectly.

My mother eventually told me that she thought the entire situation had become a lesson for both of us. She said my sister needed to learn that other people’s boundaries mattered, while I needed to learn that proving a point was not worth hurting someone emotionally. I actually agreed with her. I had become so focused on making my sister understand me that I stopped thinking about whether my method would damage our relationship. In the moment, I felt like I was finally showing her how frustrating it was to be ignored. But afterward, I realized that making someone uncomfortable does not automatically teach them empathy. Sometimes it just makes them defensive and angry. If anything, my decision gave my sister a reason to focus on my behavior instead of her own.

One of my brothers later pointed out something that I had not considered. He said that if I had simply said, “If you smoke around me, I am leaving,” and then consistently followed through, my sister would eventually have understood that I was serious. There would have been no dramatic confrontation and no family argument. I thought about that for a long time. It was probably the simplest solution all along. I had been waiting for my sister to understand why smoking around me bothered me, when I really only needed to decide what I would do if she ignored my request. Boundaries do not always require the other person to agree with them. Sometimes they just require you to act consistently when someone crosses them.

My sister and I are now on better terms, although our relationship is slightly different than it was before. We are both more careful about what we say to each other, and I think that is probably a good thing. She no longer makes jokes about me being sensitive when I ask her not to smoke nearby. I also no longer bring up her allergies whenever we disagree. That subject is completely off-limits for me now. Even if I am angry with her, I do not want to use something personal or medical against her again. I learned that there are some arguments where winning the point can cost more than it is worth. I would rather have a clear boundary and a peaceful relationship than prove that I was right by making someone else feel bad.

The family group chat eventually returned to normal, but the incident still occasionally comes up as a joke. My siblings sometimes remind me that I was “the allergy villain” for a few weeks. I usually laugh about it now because I know I gave them plenty of material. Still, I also think the situation exposed something important about our family. We had all become used to avoiding conflict instead of actually addressing problems. My sister expected everyone to accommodate her sensitivities, and everyone did because it was easier than arguing. I had started expecting everyone to accommodate me too, but instead of setting a firm boundary, I kept hoping my sister would eventually understand. When she did not, I exploded in a way that was much more dramatic than necessary.

I also realized that being frustrated does not make me a bad person, but the way I choose to express that frustration still matters. I was genuinely annoyed by my sister’s behavior. I felt ignored and dismissed, and those feelings were completely real. But I allowed those feelings to justify a decision that I knew would bother her. That was the part I regret. I could have walked away. I could have refused to spend time with her while she was smoking. I could have told her that she was no longer welcome to smoke inside my home. There were plenty of options that would have protected me without deliberately targeting something sensitive about her. I chose one of the worst options because, in that moment, I wanted her to finally understand me.

My siblings still disagree about how serious my sister’s smoking around me was. Some think she was being incredibly disrespectful, while others think it was mostly a communication problem that got out of control. But almost everyone agrees that my decision to use her allergy against her was wrong. I have accepted that judgment, even though it was difficult at first. I still believe my sister should have respected my requests much earlier, and I still believe I had every right to refuse to be around cigarette smoke. But I no longer believe that being right about the original problem gives me permission to respond however I want. Sometimes the strongest thing you can do is simply remove yourself from the situation instead of trying to force another person to learn a lesson.

In the end, my sister stopped smoking around me, but it was not because my little demonstration magically changed her mind. It was because we finally had an honest conversation and established a clear boundary. I apologized for weaponizing something personal, and she apologized for repeatedly ignoring my requests. We both had something to learn from the situation. I wish I had handled it differently from the beginning, because it would have saved us weeks of tension and prevented my siblings from turning against me. At the same time, I hope my family understands that I should not have had to reach that point before my discomfort was taken seriously. I made a bad choice in response to a problem that had been building for a long time. So now I am left with the question: was I completely in the wrong for using my sister’s allergy to make a point, or can my frustration be understood even if my reaction crossed the line?