Customer: Excuse me, do you have any cabbages?
Shop assistant: Sorry, no. We don't have any left.
Customer: Oh...well I really needed some today.
Shop assistant: Yeah. Sorry about that, maybe we'll have some tomorrow.
Customer: Well could you go into the back and check for me?
Shop assistant: Okay...spell "BEET" as in beetroot.
Customer: B-E-E-T.
Shop assistant: Now spell "SPIN" as in spinach.
Customer: S-P-I-N.
Shop assistant: Good. Now spell "FORK" as in cabbage.
Customer: But there's no fork in cabbage.
Shop assistant: That's precisely what I've been trying to tell you.