A young lad buys a donkey for PS100 - but when the farmer delivers it - the donkey is dead and the farmer has spent the money so there is no return of the price paid.
"I'll take it anyway and raffle it" says the boy. "You can't raffle a dead donkey" says the farmer. "Yes I can - I just won't tell them it's dead" says the boy.
A month later the farmer meets the boy asks him what happened. "I sold 500 tickets at PS2 a ticket" - "Didn't anyone complain?" asks the farmer. "Yes"- the boy replied "Just the man who won... so I gave him his PS2 back". The boy is now an investment banker.