A week or two ago I was scared by those dead Hylian soldiers (the ghosts) in the Hyrule Castle graveyard. I happened to be in a position that made the dead soldier's face show up perfectly right all over the screen, and it pretty much scared me at first.

It was so sudden, you can only see the ghosts with your wolf sense, so turning it on and seeing a zombie face all over the screen all of a sudden was a justified "whoa!" on my part...