If you wake tonight to the door slamming, it is probably just the wind,
or is it...
Hurðaskellir - he's a bother.
More like this
Hurðaskellir - hear the door slam in the middle of the night?
It is the door slammer, and he is pissed.
Sleep is for the weak!
Hurðaskellir - you know he's coming, but the slam of the door will surprise you anyway.
Classic "condemned man's paradox".
He's not hungry. You just won't sleep tonight.