Amnesia

You lie there. The man loosens your chains, then brings out a hacksaw, and starts sawing off your feet. You scream and writhe but it's not good. You're nearly dead by the time he reaches the bone. You pass out...
...and wake up with bionic feet made entirely of metal. You scream. Then, be it the blood loss, stress, or the fact that you've just woken up with artificial feet, you flop back down unconscious...
...and don't wake up...