Winning Vote:
Option 3 – Try to ambush whomever's coming.

As the scraping sound draws closer, you look around for anything to us as an improvised weapon, but nothing useful is to be found. The rod that the curtain hangs from is heavily bolted to the wall. The curtain itself hangs from the rod with iron rings too thick to break. Even the body, if you could even bring yourself to use it as a club, looks solidly bound by the two chains.

A thought occurs to you and it draws your gaze down to your hands which you unknowingly clenched into fists. Seeing those twin arrays of whitened knuckles, it occurs to you that there are two weapons left at your disposal: treachery and a willingness to kick people in the balls. With this realization, you hastily grab your shoe from the doorway and pull it back on, lacing it extra tight.

You step behind the door to gain that extra few seconds of surprise, and you wait. The intensity of the sound grows more intense and complex as it nears. In addition to the hcheh hcheh of something heavy being pulled along a gritty floor, a pair of repeated thwap thwap noises has just now become noticeable. It almost sounds like the footfalls of—

“Aaaaaaaaaaaaaaaaaah!” is briefly heard before

*whump!*

and the door flies open faster than you can track. There is barely a moment to for you to recognize how screwed you are before your mind drifts in unconsciousness.