Great First Sentences

The inimitable Fr Z has a great post going on the best first sentences of books.

Which reminded me of a story I remember from years back: the students were taught that the best openings of stories should contain as many as possible of the key elements of dramatic fiction: religion, sex, mystery, a person of rank...

So one student crafted the perfect first line:

'My God!,' cried the Duchess, 'I'm pregnant! I wonder whodunnit?'

Unfortunately as it's apocryphal, I can't post it in Fr Z's comments - so I put it here instead. Fewer readers, but I strive for quality not quantity...