A guy walks in to a bar with a sack, looks at the bartender and says "If I show you something completely amazing will you give me a free drink?"
"Well for a free drink it would have to be pretty amazing." says the bartender.
So the guy reaches into the bag a pulls out a tiny working piano and a hamster. The hamster sits and the piano and starts to play Ragtime.
"Well, that is pretty amazing but i don't think it's worth a free drink." replies the Bartender.
So the guy reaches back into the bag and pulls out a frog, and as the hamster plays the frog starts to sing along. Amazed a fellow patron at the bar jumps up and says "Wow, i'll buy that frog from you for 100 dollars"
So the first man hands over the frog and gets 100 dollars. The Bartender comments, "I don't want to pry into your business but you just gave away a fortune."
"Not really, the hamster is also a Ventriloquist."