A man was prescribed Viagra by his doctor who told him to take it one hour before sex. The man collected his prescription and went home to wait for his
wife to get in from work. An hour before she was due home, he took the Viagra pill.
...But just as he was expecting her, she phoned to say that she wouldn't be in for another two and a half hours.
In a panic, he phoned the doctor. "What should I do?" he asked. "I've taken the pill but the effects will have worn off by the time my wife gets home."
"I see," said the doctor. "It is a pity to waste it. Do you have a
"Well, could you not occupy yourself with her instead?"
"But I don't need Viagra with the maid."