The New York Times ran a great story about the mentality of prop bets that poker pros make. Classic stories, like Howard Lederer making a bet fro $10,000 to break his vegan diet and eat a hamburger, or Mike Matusow's recent bet that he could get down to his college weight in a year, are chronicled.

http://www.nytimes.com/2008/06/29/fa...on&oref=slogin