(A customer comes to the counter to borrow a DVD, I go into the back and get the one he wants, and all seems normal…)
Me: “May I have your card?”
Customer: *presents a bank card*
Me: “I mean your library card.”
Customer: “You mean I can’t buy it?”
Me: “No, you can only borrow from a library. ¬†You can buy DVDs in the shop around the corner.
Customer: “Oh…. so I can’t buy it here? I have to borrow it?”
Customer: “I wanted to buy it.”
Me: “You can only buy it from shops. Are you a member of the library?
Customer: “No, I wanted to buy this DVD.”
Me: “You can’t buy things here, you can only borrow things when you’re a member.”
(By this point there is quite a long queue behind him, so I ring the bell for assistance.)
Customer: “What’s that bell for? Is it for getting a copy I can buy?”
Me: “No, it’s to get assistance for the other readers. ¬†If you’d like to buy a DVD, I’d strongly suggest you go elsewhere. ”
Customer: “So I can’t buy it?”
Customer: *pauses* “Oh… I wanted to buy it.” (After one more pause, he finally leaves.)