You know the game, prolly played it with your friends in elementry school. In case you don't, the first person says 5 words, then the next person says (types, in our case) 5 words to add onto the story. It doesn't need to make sense...but it should be semi-relevant. Nothing too obscene though!
Okay, here goes!
Once apon a time there...
(real original, I know)
A most ingenious paradox.