There was an accident with a contraceptive and a time machine. Now concentrate!

I just realized that my Yuletide story has a (non-meaning-obscuring) formatting problem I didn't catch in two previews before uploading the final version.

That, and my subject line, are the clues for anyone who wants to try to guess which story I wrote. :) Guess right and get a drabble! (Actual length of drabble may not be drabble-length. Contents may have shifted in transit.)