"Why Grumpy is Grumpy" joke

The seven dwarfs are in Rome and they go on a tour of the city. After a while they go to the Vatican and meet the Pope. Grumpy, for once, seems to have a lot to say; he keeps asking the pontiff questions about the church, and in particular, nuns.

'Your Holiness, do you have any really short nuns?'

'No, my son, all our nuns are at least five feet tall.'

'Are you sure? I mean, you wouldn't have any nuns that are, say, about my height? Maybe a little shorter?'

'I'm afraid not. Why do you ask?'

'No reason.' Pause.' Positive? Nobody in a habit that's about three feet tall, two and a half feet tall?'

'I'm sure.'

'Okay.'

Grumpy looks dejected at this news, and the Pope wonders why. So he listens to the dwarfs as they leave the building.' What'd he say? What'd he say?' chant the other six dwarfs.

Grumpy says,' He said they don't have any.'

And the other six start chanting,' Grumpy fucked a penguin! Grumpy fucked a penguin! Grumpy fucked a penguin!'....