You’re In The Top Ten Percent Of Customers
(A military surplus shop in town is going out of business and having a sale on the remaining merchandise. I am walking around browsing, when the owner approaches me.)
Owner: “If you find something you want, I’m giving you an extra 10% off.”
Me: “Really? Why?”
Owner: “I saw you pick up the shirt that had fallen off the rack and replace it.”
Me: “But I was the one who knocked it off in the first place!”
(He must have been used to some really impolite customers.)