A guy walks into a bar. He tells the bartender he has no money, but in exchange for a beer hell show him a trick hell never forget.

The bartender shakes his head but goes ahead and gives the man a beer.

The guy takes a rat out of one pocket and a frog out of another. The rat scurries over to the bars piano and plays a tune. The frog belts out the song in perfect harmony with the rats piano playing.

A few minutes later another man walks over and offers the customer $100 for the frog. He instantly accepts, and gives the other man the frog.

Are you nuts? the bartender asks. That frog could be worth a fortune to you.

Dont be so sure, the customer says. The rats a ventriloquist.