Helle, I don't know if this topic has been discussed before, I just didn't find it so forgive me if I repeat it here. Some people are not open to such consideration that to consider others as possibly psychopaths. For example I know a woman whos ex boyfriend is continuing to exploit her and to manipulate her. I've tried the analogy of vampirism but it doesn't work. People who have been trained in schools and universities are very often intelligent, smart but with a closed mind into what they have been taugh to believe. Well, my question is : how to explain the issue of psychopathy to such people who may be defined as intellectually rational and possibly closed to metaphysic discussions?