Frog and rat in bar

A guy walks into a bar. He tells the bartender he has no money, but in
exchange for a beer he'll show him a trick he'll 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 bar's piano and plays a tune.


The frog belts out the song in perfect harmony with the rat are 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 mans the frog.


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


"Don't be so sure," the customer says. "The rat's a ventriloquist."