In a recent study by the Centre for Crime and Justice Studies, in London, 120 convicted street robbers were asked why they did it. The answers were revealing. Kicks. Spur-of-the-moment impulses. Status. And financial gain. In that order. Exactly the kind of casual, callous behavior patterns one often sees in psychopaths.

“Psychopathy’s Double Edge,” by Kevin Dutton

Robert D. Hare’s Psychopathy Checklist – Wikipedia