A man is waiting in a hospital to get a vaccination, and he's very uncomfortable with the idea of being stabbed with a long needle. After a while, the nurse calls him in to receive the injection.
He nervously walks into the office and sits down where the nurse indicated, eyes bulging slightly at what seems to be an array of torture devices on the bench beside him.
As the nurse prepares the needle, he tries to think of the most pleasurable things he can, to try and dull the pain he is expecting.
The nurse turns to him with the filled needle, and noticing his obvious nervously, tries to comfort him with the words, "Don't worry, it'll just be a small prick."
The man jumps up, obviously upset. The nurse looks startled, but before she can say anything, the man yells out, "Just how many people has my wife been talking to?"