One day a boy with brown hair went into ( everyone post one unfinished sentence so the other can finish it ) that way you will get a story
:H yes you finish the story my first Boy with brown hair blabla went into your sentence A hairy castle and played a next one etc etc etc
...he looked under-age. Not that the owner cared however the police had being doing some checks on him and he was worried he might lose his liscense.....
And then a giant robot came along and said "This is the stupidest story ever!" Then he killed everybody on Earth and blew up the universe. The end.
Discarding the last sentence post.. The little boy began pumping it at the direction of the door handle when