Joe went to a casino and lost all 10,000$. Swearing at the situation, he goes to a taxi driver and asks:
“I have lost all my money, please give me a ride back home for free.”
The next day, Joe comes to the casino again, and this time he successfully wins all the money back, plus an extra 10,000$. He goes out of the casino happily and sees five taxis, and the last car is the one that refused to give him a ride for free yesterday.
He goes to the first taxi and says:
“Will you take me home for 100$?”
“Sure!”
“But when you take me there, you’ll have to do the blow job as well.”
Joe goes to all the next three cars, and the story repeats.
Finally, he goes to the last taxi driver, who refused to help a day ago, and says:
“Will you take me home for 100$?”
“Sure!”
“Deal, but you have to pass through those other four taxi drivers very, very slowly.”