Mistakes happen

Two guys were at a bar arguing with their friend Johnny who was a midget. Suddenly, out of nowhere, the Pope walks in!
Johnny turns to the guys and says, "That's it, I'm going ask him."
So he walks up to the Pope and asks, "Your Holiness, are there midget nuns in New York?"
"No," says the Pope.
"Are there midget nuns in America?"
"No," says the Pope.
"Are there midget nuns anywhere in the world?"
"No," says the Pope.
His friends burst out laughing and start chanting, "Johnny screwed a penguin, Johnny screwed a penguin..."