Dead Mule

On Monday John, an old country farmer, bought a mule from Paul, another old farmer, for $100.
Paul promised to deliver the mule the next day.
On Tuesday Paul drove up and said :
- Sorry, John, but I have some bad news. The mule died.
- Well, then, just give me my money back.
- Can't do that. I went and spent it already.
- Well, OK then. Just unload the mule.
- What ya gonna do with a dead mule ?
- I'm going to raffle him off.
- You can't raffle off a dead mule !
- Sure I can. I just won't tell anybody he's dead.
Several days later the two farmers meet up.
- Whatever happened with that dead mule ?
- I raffled him off just like I said I would. Sold 200 tickets at $5 each !
- Didn't anyone complain ?
- Just the guy who won. So I gave him his five dollars back.