I think your second hypothesis is the correct one: honest people tend to be better poker players. The reason for that is that they can handle losing. People w

I think your second hypothesis is the correct one: honest people tend to be better poker players. The reason for that is that they can handle losing. People who have a shaky code of ethics tend to equate unfairness with anything that doesn't benefit them. Every time they lose a hand, they feel like they're getting cheated. And that would make them get sick of playing pretty quickly.