M.; watch supernanny, its a tv show about kids and how parents can help them , in one show the little girl did just what you described, banged her head, the mom taught the parents how to ignore it and how time out does work, one parent had to follow the directions of supernanny for like two hours of constantly putting the child in time out, every time they got up you quietly picked them back up and put them back, the parent chased the child and put them back and back in time out again and again, but eventually the child stayed there one minute per age, and the mom went back and explained to the child why there, and asked for the child to apologize , this works, what it is , is consistancy, if you say no then keep it a no, if you say yes, keep it a yes, if you say sit in the time out , then you better be able to enforce it, watch supernanny, shes got it down, hahaha have a good day, D. s