Self deception

A nice observation by Robert Trivers from the latest New Scientist: "If you ask high school students are they in the top half of their class for leadership ability, 80 per cent will say yes; 70 per cent say they're in the top half for good looks. It ain't possible! And you cannot beat academics for self-deception. If you ask professors whether they're in the top half of their profession, 94 per cent say they are."