Three Italian nuns arrive at the pearly gates and are told that, because they have devoted their lives to the world, they can return to earth for three months, taking on the identity of any person they choose.

The first nun said she wanted to return as Helen of Troy.

Why Helen? asked St Peter.

Because she was so beautiful, and remembered for it, while we have had to cover ourselves all our lives, she said and her wish was granted.

The second nun was given her chance and decided to return as Florence Nightingale, so that the good work she had done might be recognised by all the world. This, too, was readily granted.

The third nun said she wanted to return as Sarah Pippilini.

Who in the name of all thats wonderful is Sarah Pippilini?! asked a curious St Peter.

Well, Im not sure either, said the nun. But look at this newspaper. She rolled out showing a photo of several oil workers and the proud headline: Sahara pipeline, laid by 300 men in 30 days.