Instant Cure For Baldness
One day he passed a barber's shop with a sign in the window that read:
Your Problems Solved Instantly.
and you too can have a head of hair like mine.
So the bald guy went into the shop and asked the barber: "Can you guarantee that for $500 my hair will instantly look like yours"?
"Certainly," said the barber. "It will take no more than a few seconds for us to look exactly alike".
"Okay then," said the bald guy, handing over the $500. "Let's go for it".
The barber took the guy's money and then shaved his own hair off.