A little old woman 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 woman. "I 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.
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