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'm broke and haven't got any money!"
and she proceeded to close the door.
Quick as a flash, the young man wedged his foot in the door and pushed
it 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 onto 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 let me get you a fork,
'cause they cut off my electricity this morning."