So this nun dies and she goes to heaven. St. Peter meets her at the Pearly Gates and says, "Siser, because of your chaste and saintly life, the good Lord has decreed that you can go back to earth and be anyone you want to be."
The nun thinks about it briefly, and says, "I want to be Sarah Pipilini."
St. Peter thinks for a while, goes to a large book and leafs through it, and says, "I'm sorry, sister. We have no records of a Sarah Pipilini. Are you sure that's the person you want to be?"
The nun pulls a sheet of newspaper out of her habit and hands it to St. Peter who reads it. He folds the paper back up and hands it to the nun, sayng," I'm so sorry, sister. It was the Sahara Pipeline that was laid by a thousand men."