Will Come Money-Back To Haunt You

(I work in a pet store where we carry dental dog biscuits. Many of these say, “guaranteed to reduce tartar or your money back.”)

Customer: “Hello, I’d like to return this bag of biscuits.”

(The customer places a completely empty bag on the counter.)

Me: “Did they not help your dog’s teeth?”

Customer: “Oh, no, they did, but the bag says I can get my money back anyway.”