It is hard to drum up much sympathy for the casino, who fully intended to keep all of the players money by having him play a game with odds in their favor (“fair odds”) as opposed to a game in which they didn’t realize the odds were in the player’s favor (“Totally unfair odds!!!11!!1”).
However, you can totally con an honest man. Many cons take advantage of people’s altruism. It is a mistake to think that all cons are based on a greedy victim, though, in this case it is true 
