Brennan's game of Roulette doesn't make sense at all. For example, he bets one stack of coins on 28, black, and on winning, gets two stacks extra. One of these is a different color of coins (red), but he should get 35 times what he bet as a profit. Then he bets three stacks of the same color (which he doesn't have) on the 2nd 12, and wins when the ball stops on 30, which is in the 3rd 12. He gets exactly what he bet, only half of what he should get if he did win. With the next bet, he again has the stack of red coins, and only 5 stacks of the other color, which, according to his last bet, he should have 6 of.