After queueing at the Tesco checkout this morning, I said to the cashier, "Can you do this any cheaper?"
"I'm afraid not," she replied, "if we did it for you then we'd have to do it for everybody."
I said, "Yes, but it has today's date on it. If nobody buys it then it's just going to be thrown away."
She raised her voice, "Look, sir, you're holding up the queue.