Rowdy fights a lot, even in kindergarten. What does he say is wrong? What does this tell us?

Rowdy even fights in kindergarten. Even his teachers are afraid of him. Once a teacher asked what is wrong with him and Rowdy screams "everything". This is a terrible thing for a six-year old to say. Rowdy's home life was so dysfunctional and abusive that a little child feels everything is wrong. Rowdy cannot understand his anger but feels it everywhere he goes.