text:  They definitely won't work in a vending machine. Well, you're probably right. Twenties would probably have had some flaw, too, he said. They'd be missing that anti-counterfeiting strip or something. Well, it's probably not ethical to spend any of it anyway, I said, flicking the pedal with my finger now to hear it clink again. I mean, it is counterfeit money, just because Isabella grew it doesn't make it, you know, kosher to spend.