There's a funny (not intentionally) Icelandic saga that explains zombiedom among our frozen cousins, with an anecdote about how Skalla-grim (name translates to Skull-grim) died, and his son planned carefully so that the body could nto come back to haunt him.
Skalla-grim died at home, so they busted a hole in the wall of his house, and carried the corpse out that way, and then after the funeral immediately fixed the hole. Since zombies follow their own trails back to the place where they died, the plan was that zombie!Skalla-grim would crash into the exterior wall of the house, possibly repeatedly, instead of inviting himself in the front door.
(Norse zombies, unlike Haitian ones, are just really mean corpses, not shambling idiots. I mean, they sometimes talk, they wield weapons, and people re-slay them -- by cutting their heads off and placing the heads far away from the bodies --, but they are still dumb enough to bash themselves into a wall because it wasn't a wall last time they passed it.)