Lets make a MASSIVE post where we have a massive story, and I start off with "once upon a time" and then someone carries on with the story. (With a strict five word limit. Like this:
A: Once upon a time
B: There lived a
A: Gay
B: Sheep
A: He like to bum
B: Other men 'n' shit.
You get the idea
.
Here goes:
Once upon a time