you find actually is any kind of situation a professional situation where you've got an organizational structure, a power hierarchy, psychopaths do very well in that kind of situation where they can climb up the ladder, where they can use their ruthlessness and fearlessness and manipulation skills to further their career to the best of their advantage. >> so kevin, can you become a psychopath or do you have to be born a psychopath? >> there's a lot of evidence to suggest that there is a genetic component to psychopathy, but it also depends on the kinds of environmental stimuli that you get earlier in your childhood. and there are psychopathic genes i could put it but if they're only enlocked if you have an abusive or a violent childhood and the way i always look at this is, as an analogy, imagine you've got a book on a library