The Psychopath Test by Jon Ronson

Jon Ronson always writes strange books--he was the creator of Men Who Stare at Goats (about secret government mind control trials), Them (about extremists of all sorts), and now The Psychopath Test, which is his most interesting to date.

Central to the story is an patient in an institution who faked insanity to avoid a prison sentence, but then found it impossible to get out because the very act of faking branded him a psychopath.  Ronson spends much of the book questioning authorities on psychopathy, and, as the inmate's story shows, it turns out it's not the kind of black and white issue you might assume.  In one memorable and completely bizarre scene, Ronson determines that a well-known CEO is also a psychopath by running through a checklist in the man's home. 

This is an audiobook not to be missed if you're interested in the bizarre, or if you've always wondered if there's something a bit off about certain powerful people.