A man walks into a bar and asks the bartender, “If I show you a really good trick, will you give me a free drink?” The bartender considers it, then agrees. The man reaches into his pocket and pulls out a tiny rat. He reaches into his other pocket and pulls out a tiny piano. The rat stretches, cracks his knuckles, and proceeds to play the blues.
After the man finishes his drink, he asks the bartender, “If I show you an even better trick, will you give me free drinks for the rest of the evening?” The bartender agrees, thinking that no trick could possibly be better than the first. As the rat continues playing, the man reaches into his pocket and pulls out a small bullfrog, which begins to sing along with the rat’s music.
While the man is enjoying his beverages, a well-dressed stranger approaches him.
“Mister, I’d like to buy that frog,” says the stranger as he pulls out his wallet. “I’ll give you $500!”
“Sorry,” the man replies, “he’s not for sale.”
The stranger increases the offer to $1,000. “No,” the man insists, “he’s not for sale.”
The stranger again increases the offer, this time to $10,000. The man finally agrees and turns the frog over to the stranger in exchange for the money.
“Are you insane?” the bartender demands after the stranger leaves. “That frog could have been worth millions to you, and you let him go for a mere $10,000!”
“Eh, the frog wasn’t really all that special,” the man answers. “You see, the rat’s a ventriloquist.”