Jon Ronson sees insanity all around him. Partially that is because as a journalist he is drawn to write stories in which people engage in erratic behavior. It is also because he has learned The Psychopath Test, and he cannot stop administering the 20-point checklist to everyone around him.
Item 1: Glibness/superficial charm
Item 2: Grandiose sense of self-worth
Item 3: Need for stimulation/proneness to boredom
Item 4: Pathological lying
And, so on. From a rude concierge at a hotel to the CEO of a giant corporation, no matter where Ronson looks, everything's coming up psycho.