Stop me if this sounds familiar.
Your family has decided to try playing a friendly game of Monopoly together. So far everything is going fairly well — you've lost most of your money and you didn't buy up the good properties fast enough. But otherwise, it's a pretty fun game.
Except you can't help but notice your brother, Mister Banker, seems to have an endless supply of money. No matter what he splurges on, there's always a steady flow of cash in his hands. Curious.