Card expert John Scarne tells the story of an elderly, distinguished gentleman, apparently slightly inebriated, who one night began observing the play at a Houston roulette table. Presently he began to complain about how unlucky he was. “What do you mean, unlucky?” the croupier asked. “Number 32 just won, didn’t it?” the man said. “Yes, but you didn’t have a bet down,” said the croupier. “What’s unlucky about that?” “Oh, yes, I did,” the man said. “I made a $10 mind bet on 26 and lost!” He gave the croupier a $10 bill. “I always pay my losses,” he said,...