For a boy's 15th birthday, his father gave him a duck, and said, "Go into town and see what you can get with this."
The boy then went in search of the best deal he could find. He first ran into a hooker who offered, "I'll have sex with you if you give me the duck." He agreed. Afterwards, she was so impressed she said, "If you do it again, I'll give you the duck back."
He thought that this was an excellent deal, and agreed.
Since he had his duck back, he continued to walk through town to try to find something else. Suddenly, the duck flew out of his arms and into an oncoming truck.
The driver of the truck was so sorry about killing the duck, he gave the boy 2 dollars.
When the boy arrived home, his father asked what he received for the duck.
His reply: "Well, I got a fuck for a duck, a duck for a fuck, and two bucks for a fucked up duck!"