Salkkuman: The player who (wrongly) marked dead stones is the one who has pass disabled, not the other way around.
Think of it as
player 1: I say these stones are dead
player 2: I don't agree, prove it.
player 1: ok, I play here (and lose 1 point)
player 2: Ah! you're right (but you're now losing by 0.5 points) ... pass
player 1: pass
player 2: mark dead stones correctly
player 1: decline
player 2: (Rats! she didn't fall for it) ... resign