They Need To Top-Up Their Politeness

(I work at a very small, very busy convenience store. It’s my first day at the register:)

Customer: “A £10 top-up for [Mobile Phone Network].”

Me: *prints out voucher, takes payment, and hands voucher to customer along with receipt* “There you go. Take care.”

(Two minutes later, the customer storms back into the store, barges to the front of the queue, and starts yelling.)

Customer: “Where’s my f****** top-up? All you gave me was the receipt!”

Me: “I can assure you, I gave you the voucher, too. I checked it as I handed it to you.”

Customer: “So, where is it now? You didn’t give it to me!”

Me: “I have no idea. Maybe you dropped it? All I can tell you is that I’m certain I handed you the voucher.”

(At this point both of us notice a small piece of paper by the shop door. The customer picks it up. It turns out to be a mobile phone voucher. I’m expecting an apology. Shows how new I am.)

Customer: “How do I know this is mine?”

Me: “Is it for £10 and [Mobile Phone Network]?”

Customer: “Yes.”

Me: “…”

(The customer stomped out.)