I have an 11 year old half brother who I've been staying with for a month now because I'm visiting my dad and he lives with my dad, along with my half sister, step brother and step mom.

When my dad isn't home, my half brother is extremely rude to everyone in the house, except for dad, especially my step mother. He only listens to and respects the dad, even though he doesn't do much either. Anyway, He'll tell his mother to shut up for no reason, call her an idiot and, and even say he hates her for no reason at all. He also tends to throw and break things as well. He does it to all of us, but to his mom? That isn't right. The worst part is, she does nothing! She'll tell him to go to his room and he'll either go in there with his phone or not move at all, and when he doesn't move, she doesn't do anything! All she normally does is just tell him that he's being rude and that's it.

A lot of the time, I'm half tempted to slap him across the face tbh.