Reminds me of a story I read. Man needs a hitman. The hitman asks for 1 million dollars, and his company will do any task. So the guy gets the hit on his ex-wife. Next day, she's dead. And he can't believe how well they managed to pull it off. So, as a joke he goes to meet the guy the next day. He asks that the entire world be killed off. So, next morning he wakes up, and he hears these thunderous roars, like bombs dropping. And then a flash in front of him.
And thats the end of it. Can't remember the name though.