The reward is unpredictable, but it comes, understanding that has a powerful effect on people.
Why hadn't he graduated on the table games where he had a fighting chance to win? They give players a opportunity to win a lot more than they wager, which isn't the case with a table game like Roulette. https://apollobookmarks.com/story17445345/is-playing-bingo-more-exciting-than-casino-activities