Been done - probably...
A little girl stands on the edge of a cliff crying. A man happens to be passing and asks her what is wrong.

"My parents" she says "We were walking along the cliff and a sudden gust of wind blew them both off and down onto the rocks below!"

The man looks down and sees the crumpled bodies of her parents, shakes his head and tuts, then starts unbuttoning his flies.

"What are you doing?" asks the girl.

The man replies, "Not your lucky day..."
(Log of the Bar, Fri 10 Sep 2004, 13:32, Reply)