Creeps the hell outta me too. It's dark in there, and I can feel a tinge of fear when I see that green thing coming, with his dimly glowing propellors..damn..It's like being in the wods and knowing Jason is in there somewhere.
Hell, yesterday I was underwater, seeking some key or whatever, when I jumped at what I thought was the monster coming, but it was only that thing in the ground..eep.