How do i stop it. Normally i do time outs for him but they dont seem to be working it went from open hand hits to drop kicking my middle child just because she wanted to sit next to him. he is also punching her and throwing toys at her face. he only goes after her and i know she can be a little instigater alot of the times but i dont see her pushing him to piss him off just after the factgah im just so frustrated. time outs seem to work for everthing else he just seems so stubbern about this hurting people. HELP PLEASE!