A man wins a big jackpot on a slot machine in Vegas.

As it is paying out of the machine, but before the pit boss reaches the lucky winner, a haggard man approaches him and asks him, "I don't mean to disturb you during your big moment, but my wife is sick and needs an operation. Could you see your way clear to giving me $15,000 of your winnings?"

The man replies, "Well, it's all well and good for you to say that, and if it's true I sympathize, but how do I know you're not going to turn around and just gamble it away?"

The haggard man responds, "Oh, I've got gambling money."