Now here's something we have done last time in what I think you'd call "Creative Writing".
Write a story in five minutes (not less not more) and make a sudden twist in the end. Here's an example:

He lied down on his bed. He didn't care about his shoes; the bed would get dirty anyway. The sun was shining through the blades of his blinds. It shone on his desk on which there were sheets with homework which he hadn't done yet. On the floor right next to his desk lied even more sheets many of which weren't touched for months. Besides his desk was a cabinet were he stuffed all things in and which seemed to burst open at a moment's notice.
Then he looked at the shotgun lying on the floor with which he just had shot himself.
He closed his eyes.