My 6 year old has turned into a classroom tyrant! He hits others and causes disruption in and out of the class. He has been put in a weeks detention and the teacher has today informed me shes sending a daily behaviour book home with him. I am at the end of my rope. I have sent him to a behaviour doctor at 4 who said he didnt suffer from a.d.h.d but im starting to doubt that again! To top it all his 3 year old brother has been doing the same at his new nursery school. I feel like i could run away and stay there!! Any help greatly appreciated.