First off, psychopath doesn't just mean someone who cuts you up with a chainsaw -- though the majority of people who do things like that are psychopaths. What's the definition?

Psychopathy is a personality disorder that has been variously described as characterized by shallow emotions (in particular reduced fear), stress tolerance, lacking empathy, coldheartedness, lacking guilt, egocentricity, superficial char, manipulativeness, irresponsibility, impulsivity and antisocial behaviors such as parasitic lifestyle and criminality.

So which professions (other than axe murderer) do they disproportionately gravitate towards -- or away from?