Customer: Waiter, I'll have coffee without cream or sugar.
Waiter: I am sorry, Sir, we are all out of cream. You'll have to have it without milk.
Not much of a joke, but one I adapt over and over to everyday life. By the way, I don't like "jokes" very much. I like to see the humor in everyday situations, but tales structured as "jokes" usually bore me.
For extra credit: Have you ever been to Kansas City. Yep, KC MO and KC KS, both. Dined there on ribs, gambled there on riverboat, recuperated from heart attack there. I enjoy the place and appreciate their medical up-to-date-ness.