I'm staying with my family for the holidays and I thought it'd be a nice time, but I forgot they treat me like a housekeeper. I do all the chores. I don't mind if it's my chore. Obviously if I know it's a dishwasher, it's full, I empty. If I cook, I clean up. If I make a mess, I clean up. However, if my little brother makes a mess, he makes me clean it up. If I refuse and tell him to do it himself, he tells my parents and they side with him and just bug me until I do it. My brother also asked me to cook for him. He pulls out brownies and makes it in his like, make this. I always am like, sure, I can make it, but you have to help. He gets mad and says, I help by taking out the box. And when I refuse to make stuff for him or tell him to make it himself, we'll throw a fit and tell our parents. Lately, he keeps asking me to make stuff and I get frustrated going back and forth about why he can't make shit himself or just ask our parents. So I make the food, he asks, but I always add stuff he doesn't like. So if he asks for brownies and refuses to help, I put nuts in it. He hates them and I like them. He came over to see the brownies and got mad at me and told me he hated nuts and he can't eat the brownies anymore. I just said, too bad, make it yourself next time or help me and tell me not to put nuts in. I thought he learned his lesson to at least help, but he keeps asking me for stuff and I just keep putting stuff that he doesn't like in it. He finally got fed up and said, he's not eating because I keep making stuff with stuff he doesn't like. I just drugged and told him to make his own food then. He told my parents, of course, and they just told me to stop being an asshole and make food for him. It was my last day at home and I just told them to make food for him. If they're so concerned before I left. Now my parents are upset with me and my brother's angry with me and I'm wondering if I was too petty.