The boy has an aha moment.

PIC Aha band “Not this kind, fortunately. Never this kind.”

Says the boy: My tooth is almost out. Can I just have my tooth fairy money now so I can buy this thing?
Me: Nope. Sorry.
Boy: Okay. I guess I better haul some more rocks so I can earn the money, because I really want it.
Me: Good idea.
[Me on the inside: HALLELUJAH!!!!!!!!!!!!!!!!!!!!!!!!!]

Now to spread the word to everyone who owns a credit card . . .