I found this again today. I must excerpt it. I saw it performed as a Humorous Interp piece several times in High School and occasionally remember bits of it for no particular reason.
How to Write Good
by Michael O'Donoghue
Lesson 2 - The Ending
All too often, the budding author finds that his tale has run its course and yet he sees no way to satisfactorily end it, or, in literary parlance, "wrap it up." Observe how easily I resolve this problem:
Suddenly, everyone was run over by a truck.
-the end-
If the story happens to be set in England, use the same ending, slightly modified:
Suddenly, everyone was run over by a lorry.
-the end-
If set in France:
Soudaincment, tout le monde etait ecrass par un camion.
-finis-
You'll be surprised at how many different settings and situations this ending applies to. For instance, if you were writing a story about ants, it would end "Suddenly, everyone was run over by a centipede." In fact, this is the only ending you ever need use.*
*Warning - if you are writing a story about trucks, do not have the trucks run over by a truck. Have the trucks run over by a mammoth truck.
LESSON 10 - MORE WRITING HINTS
There are many more writing hints I could share with you, but suddenly I am run over by a truck.
-the end-
And now, the actual update. I've broken 70k. I know how the story will end (approximately), though not exactly who will be present in the final scene or in what condition. I also suspect the story will need another 15 or 20 k to finish, unless things come out rather tersely. There's no way to finish the story in the next ten thousand words, unless I end with "And suddenly, everyone was run over by a mountain troll."
I've also realized that when one includes fictional prophecies or oracular utterances in one's works, they become a kind of Chekhov's Gun. They must be either fulfilled or thwarted, lest the audience become distracted and begin to disbelieve.