Quasimodo (the Hunchback of Notredame) had an identical twin brother who lived in the countryside.?

One day, Quasimodo decides that he wants to go on a holiday so he asks his brother if he'd look after the bells at Notredame for a week.

Quasimodo leads him up to the belfry. "The bell-cords rotted through years ago," he says, " so I have to ring the bells from up here."

"Well," says Quasi, "I run at the bells, and hit them with my head like this...". bashing the nearest bell with his forehead which makes a beautiful loud ring.

After a few demonstrations, the brother decides to have a go. He runs up towards a bell, smacks his head against it and it makes a lovely ring but unfortunately it also gives him concussion. He staggers around the belfry for a moment before falling out down to the pavement below. As Quasimodo peers over the edge he can see a crowd of people gathering around the scene.

"Who is it?" says one.

"I'm not sure, but the face rings a bell," says another.

"Yes - he's a dead ringer for Quasimodo," says a third.

"No. I think it's his brother," says the second person, "I had a hunch he was back."