I wasn't going to post the story I wrote for this because, even though in principle I wrote it to stand alone, it makes way more sense with four facts as background:
1. I wrote it immediately after the first meeting of the short short fiction class.Anyway, my story is called "Process of Elimination" and is available with "The Colonel" pre-pended to it here. Going both above and below the parameters of the assignment, it has 6 named characters and comes in under 375 words. Yet still includes profanity, innuendo, and death. Non-cruel comments and suggestions welcome.
2. In that first meeting, we did the whole "she was the kind of person who..." writing-class exercise (recounted here).
3. In that first meeting, we also read this one-page story "The Colonel," which the instructor said was arguably the most famous short short story and arguably responsible for the whole recent renascence of short short fiction writing.
4. My own reaction to "The Colonel" was that, while I thought it was a good story, it was also exactly the type of story I really don't have any interest in ever writing myself.
The class, incidentally, so far seems like its going to way more fun than whatever else I would otherwise be doing with my Tuesday nights the next two months. I was worried that the class wouldn't get my story, but they did, and they laughed at all the right places when I read it out loud, and so now I'm feeling that same rush I feel when I'm teaching and a lecture goes over really well.
The instructor also gets a big thumbs-up, as she turns out to have a gift for making everyone feel enthusiastic about everyone else's story, such that I think other people left feeling the same kind of glee and comraderie I did.