A guy walks into an ugly bar ...
with a bag and orders a drink.
After a while, the bartender asks him, “What do you have in that bag?”
The man says, “Nothing, don’t worry about it”

The night continues and the bartender keeps asking about the bag but the man keeps giving him the same answer.
Towards the end of the night the bartender offers the man a free beer if he shows him what's in the bag.
Finally the man agrees.

He reaches into the bag and pulls out a tiny piano and a tiny man that sits down and starts playing the piano.
The bartender says, “Wow! That’s amazing! Where did you find the guy?”
The man looks up and says, “I have this magic lamp that grants me wishes, but the stupid thing is broken.”
The man then hands the bartender the lamp and says, “You can try it if you want.”

The bartender happily grabs the lamp and wishes for a million bucks. Suddenly the room is filled with a million ducks.
“Damn, this thing is definitely broken!”, the bartender says.

The man replies, “Tell me about it man, do you really think I wished for a twelve inch pianist?”