Oh geez Donna I don't know how many times my son has become so angry that he has blacked out. Not as much lately but that may be due to on and off meds. The other day we had been fighting and he punched the wall, dented it and split his knuckle and during this his grandmother was on the phone asking if I was alright due to an earlier incident, I mentioned the wall and he called me a liar until I pointed out the blood on his knuckle and the new dent in the wall. He didn't even remember doing it. I have got to get him to a better psychiatrist but there aren't any where we are at right now.