Pizza

Me (smiling): Hello. Can I have a slice of that vegetable pizza, please?
French-woman-behind-counter-in-hypermarket (scowling): I don't have any.
Me (confused) : oh! Er....well, that one then? (points with finger)
F-W-B-C-i-H: That one? But that's mushroom and pepper! (puts it in box) Have a nice weekend!
Me : whimper...(staggers away..)