Always Flush First

Few things are worse than waking at 3am with a full 'poop-deck'.
The urge struck during what I considered to be the ultimate erotic dream, and that was just unfair!
I shambled downstairs, bumping into walls on my way to the toilet, cursing the need to void the remnants of the evening's dinner.
After assuming the position, I heard a 'scittery' sound coming from below. True concern eluded me, until it became persistent.
Fear gripped me when sensation replaced sound, as a foot-long centipede shot between my legs, and onto the floor.
I'd found something worse, after all.