An anonymous letter has been sent to Princess Twilight Sparkle with grim news: one of the benches in the local park has been booby trapped! Said trap will trigger whenever the next pony to sit on it stands up.

Not a problem. No need to panic! All she has to do is get to the bench before anypony... sits... on it.

Oh, bother.

Just a silly idea that popped into my head. Written purely as a distraction from my usual projects, with no mind paid to whether it's, yknow, good.