So this happened a few years back and it caused a huge family fight and I'd like some outside opinions on it.

I was 23 and living at home, my older brother D (26m) also lived at home with his son and girlfriend. We shared the upper floor of the house and a bathroom.

The day before this broke D had "cleaned" the bathroom by sweeping everything on the floor out and into the hallway. He combined all of that with the trash from the hall and left the pile.

I've always been messy, I can't help it but I try to work on it. Now the day after D's "cleaning" I was working on cleaning my room. My oldest sibling had moved out so it was just mine now and I'd gotten too comfortable with that.

I was watching a show and doing commercial cleaning. D walked by and saw me cleaning my room and asked me to pick up his pile in the hall, I said sure if we brought me a dustpan so I could finish some piles in my room.

He went downstairs and I went back to what I was doing, cleaning off and on. When he finally came back he snapped at me about how I hadn't touched his pile.

I asked where the dustpan was, where he'd been for an hour. Instead he snapped that I didn't have an excuse since I'd "barely" cleaned since he saw last. I told him if that's the case then he has no excuse since he made that pile yesterday.

He stormed off and apparently told our mom I was refusing to clean up "my mess".

I was pissed when I got yelled at to "just clean it up" so I left and went to the gym to cool off.

I didn't come back until everyone was asleep. The next day I continued cleaning my own room and pointedly not cleaning the hall. It wasn't my mess so I wasn't going to do it since my brother wanted to be a dick (imo)

Two days after the initial fight I got a call from my mom yelling at me that I needed to just clean up my mess and how I should contribute to the house. I yelled back at her that I do plenty of cleaning in the kitchen, and cooking. I tried to tell her that D had swept the mess into the hall and left it. That he should clean it. When she started yelling at me again to just clean it I hung up on her. Got reamed out for that.

I fought it for another day before just cleaning it up. But after that I refused him any non compensated favor because I noticed how quick he would try to get to our mom to get her on his side. So she can't be mad that I said no when given the option honestly.

But was I responsible for the hallway pile after saying I would if he did me a small favor that he didn't do?