Glass Shell syndrome

When a man has dealt with so much stress, from relationships, careers, friends etc. That he turns into an individual of bottled up psychotic rage, clearly unstable. So unstable in fact, that not even a women PMSing will dare to cross his temper. He will be calm at first, but certain things to nothing at all will set him off on a lethal rampage of death and destruction. The closest thing to a fucking werewolf a human can get.