Winning a big prize at the casino is what every gambler dreams of. You rock up to the slot machine with a prayer in your heart. Yes, your rational brain knows you’ll probably only lose money, but why else would you be there if you didn’t harbor the secret hope that you’d hit it big? It’s how casinos stay in business. Everyone thinks they’re going to win money. Of course, very few people actually do, but we all have a sense of exceptionalism that says «It’s going to be me this time.»

But sometimes, the real trouble begins when you’ve won. Now that you’re flush with money, you have to decide what to do with it. Do you spend it on the people you came with, or do you keep it all to yourself? What about the people who were there with you when you made it happen? Are they owed anything?