People who have been in a fight, why?

It was actually Because of my brother in like middle school me and my twin brother before school I was hanging out with my friends and he came over and was just like being really homophobic and like just really being mean to my friends and being really transphobic so I tried to slam his head into a wall and then we got into a fight he lost which is still one of my proudest moments cuz he should have known by now I am basically the mother hen of all of my friend groups