A little old lady answered a knock on the door one day, only to be confronted by a well-dressed young man carrying a vacuum cleaner.
"Good morning," said the young man. "If I could take a couple of minutes of your time, I would like to demonstrate the very latest in high-powered vacuum cleaners." "Go away," said the old lady. "I haven't got any money, I'm broke!" As she proceeded to close the door, the young man wedged his foot in the door and pushed wide open. "Don't be too hasty," he said. "Not until you have at least seen my
demonstration." And with that, he emptied a bucket of horse manure on to her hallway carpet.
"If this vacuum cleaner does not remove all
traces of this horse manure from your carpet, Madam, I will personally eat the remainder. The old lady stepped back and said, "Well I hope you've got a damned good appetite, I told you I'm broke, they cut off my electricity this morning."