"My 15 year old son has just had a meltdown over exams at school today and I'm at home with him - afraid to leave him alone and go to work in case he does something silly to himself. When he loses control, he bashes walls, rants, raves and finally curls up and hides somewhere (what I consider to be the danger period where he beats up on himself). He’s a very intelligent boy …places extreme expectations on himself. I try my best to reason, but with little success."