Think of a psychopath, and any number of Hollywood villains might come to mind, from charming killers like Hannibal Lecter to Anton Chigurh, portrayed with chilling menace by Javier Bardem in the film No Country for Old Men. But the traits and symptoms of psychopathy run along scales that range from weak to strong. So, someone may be mildly psychopathic or severely so. There could be a psychopath sitting next to you right now.
