Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input: My friend, K, has been living with me (and paying rent, though his name is not on the lease) for the last 2 months. The whole situation is shitty because he was originally supposed to stay for 1 month and still shows no signs of leaving anytime soon, but that's a whole other ordeal. Just know that tensions between us are high.

K loves my cats, and even feeds them for me sometimes without me asking him to. I'm always grateful and thank him whenever I notice him doing it. But they can be little shits, and one of their favorite troublemaking hobbies is gallivanting through the halls of my apartment building, which, as indicated by my lease, they're not supposed to do. But sometimes they're too quick and squeeze by me before I can stop them. I don't mind it much though and I almost always catch them before they get too far down the hallway.

Now, I just started a new job yesterday morning. I haven't been feeling well and couldn't sleep much the night before, so I was exhausted that morning. K, knowing this, went out to the grocery store down the street while I was still sleeping and bought me an energy drink and a snack to get me through the day. I thought this was really sweet of him and thanked him for it several times throughout the day.

Fast forward to tonight, I'm trying to nip a potential ear infection in the bud by pouring some hydrogen peroxide in my ear. Anyone who's done this knows how unpleasant it is, and to top it off, I'm particularly squeamish about things touching or going inside my ears. K knows all this, and I was also very vocal about my discomfort while it was happening. K decides now would be a good time to tell me that one of my cats got out as he was leaving to buy those snacks for me. The cat led him on a wild goose chase throughout the building, running up and down several flights of stairs before K could catch him. I sort of half-chuckle and say, "Yeah, he can be a shit."

So there I am, head cocked to the side and nursing this peroxide bubbling in my ear, and K just says, rather rudely, "You're welcome."

I was caught off guard by that so I didn't say anything. K says, "Wow. Really, nothing?"

Cue some bickering. I told him that I would have gone out and caught the cat myself if I knew it was happening, and also, what else was he going to do, just leave him out there? K responds, "Just because something's common courtesy or expected doesn't mean you shouldn't still say thank you." I'm annoyed at this point so I halfheartedly apologize but I tell him that I didn't realize a thank you was expected or necessary in this situation.

He responds, "Whatever, it's a really minor thing anyway." I reply, "Yeah, it really is." Thought it was over. He says, "Maybe the next time you do something minor I'll just forget to thank you for it."

Then I told him to fuck off and went to bed.

So, Reddit, AITA for not thanking him or is my friend TA for expecting a thanks?

not thanking my friend after he caught my cat that got out