So I was with my family today and when we were about to leave my sister tells everybody “we can take little brother home”, keep in mind im there with my car and my sister is there with hers. Since my sister said she could take him home, I made plans with friends later tonight. As we are leaving, my sister tells me “OP, you’re taking little brother home right, i have plans with friends. So I tell her I already made plans but she refuses and leaves me there with my little brother, so I end up taking him home. Later I told my sister I would rather her just ask me directly instead of tricking me into it. This got her to tell me “you dont care about family, Hes your little brother. I picked him up from school for four years (got paid the entire time) and you cant take him home once.”  Am I being an asshole for being upset with her that she tricked me into taking him home? And i really do care about my little brother, love the little dude to death but my sister tries to make me feel like shit when I say I cant do something for him and always makes me feel like an asshole when i think im being completely reasonable.