AITAH for calling out my sister for driving to our house despite being sick?
This happened several years ago, roughly 2010ish when i was ~14 (maybe closer to 12?) or so, but it's a day I find myself returning to in my mind. My sister had moved out maybe a year before this. It was Sunday morning mid-winter (about 20° F out, probably about 10 with wind-chill). My sister was apparently sick this day and decided to hang out with us, driving herself to our home and cozying up on the couch right next to the main door. This happened to be trash day, and I was expected to gather all the trash from the house and take them to the curb. Normally what I did at this point was gather all the trash by the door (heat is expensive so it's usually worth it to have a brief stench in the area to keep the heat in).
As my sister was experiencing a stomach bug, I figured it would be best to sacrifice some heat to avoid triggering her nausea. I knew in the back of my mind that she would wind up criticizing me regardless of what I did, so I picked the lesser of two evils. Could I have asked her beforehand? Perhaps, but the relationship we had at the time was... Volatile. Any contact between us could set off a fight, so this was the path with the smallest chance of an upset.
After a few bags had been put outside the door, my prophesy came true and she complained about the door being opened repeatedly and letting the heat out. I told her it was either that or have garbage piled up right behind her. She responded something like I didn't need to open the door for every bag. I was just following my regular route for garbage collection. I pointed out that she would have complained either way and my mom actually backed me up on that.
A bit more arguing, she escalated from there and said something about how she was sick, and I said something along the lines of "But you weren't too sick to drive all the way here." She threw a fit and when my mom tried to stop her from leaving she responded with a brand of sarcasm so similar to our dad that it may as well be genetic: "No, I'm able to drive so clearly I'm not that sick!" And she slammed the door and left.
From my perspective, she left her home and drove to ours, risking spreading whatever she had (she didn't), complained after I chose the path of least antagonism and had enough energy to argue. My mom says she doesn't like being alone when she's sick and that I was too harsh on her. Meanwhile, I generally wanted to be alone when I was sick (still do). Partially because it's embarrassing and partially trying to be considerate.
So was I the asshole for what I said at the end?