Jack, wanting to bring Uncle up to date on all the latest conveniences, told him he needed to get a debit card. "What's that?" Uncle asked. It's a card that you can use to get your money out of the bank any time you want it, day or night. He took Uncle to the bank to demonstrate using his own card.
Jack went through the whole routine. Card in, pin #, transaction, money. Uncle watched all that and asked, "Who's in there to give you that money?" Jack said, "Nobody's in there, Uncle, the machine gives you that money. "How does that machine know it's you?" Then Jack went through the whole explanation again, to which Uncles allowed, "Humph,ain't no wonder there's so many folks outa work." Uncle never did get a debit card.