A man walks into a bar with a tiny piano and a 12-inch pianist. He sets them both on the bar and the tiny pianist starts playing beautifully. The bartender is amazed and asks where the man found such a talented pianist.
The man explains that he found a genie who granted him one wish. He asked for a million bucks, but the genie misunderstood and gave him a million ducks. Feeling cheated, the man asked for a longer penis instead. And that's how he ended up with a 12-inch pianist.