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
minutes of your time, I would like to demonstrate the very latest
in high-powered vacuum cleaners."
"F*** off!" said the old lady. "I haven't got any money" and she
tried 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 poop
all over her hallway carpet.
"If this vacuum cleaner does not remove all traces of this horse
poop from your carpet, Madam, I will personally eat the
remainder."
"Well," she said, "I hope you've got a mighty good appetite,
because the electricity was cut off this morning."