When Jamie was little, his behaviour was awful. He used to get so angry because he was frustrated. He couldn't cope because he couldn't express himself. He did some awful things. He smashed the kitchen wall in. He kicked the teacher's car door in because she wouldn't take him fishing. He broke a steel pool cue to vent his anger. It seemed to me not a week went by without my being called into the school to cope with some crisis. Listen to how we overcame this problem of oppositional behaviour at Youtube: https://www.youtube.com/watch?v=4W34B6xIMYo.