A Signature Problem

(A customer pays by credit card, the receipt prints out for them to sign — this is back before all cards have PINs — and the customer signs the receipt. I turn over the customer’s card to find that it’s a new one and they haven’t signed it.)

Me: “Sir, you haven’t signed your credit card yet.”

Customer: “Oh!” *signs card*

Me: “Can I see your ID, please?”

Customer: “What do you need to see my ID for?! The signatures match!”

Me: “Because you just signed both, I just need to verify it is your card.”

Customer: “This is ridiculous!”

Me: “If someone had stolen your brand new card and I let them buy stuff on it, how would you feel?”

(The customer, grumbling, shows me his ID. The name and signatures match.)

Customer: “See, I told you they matched!”