Windows.
Not the Operative System, you fool, windows.
Ever since I was young, I've been scared of windows, which is why I always lowered my window blinds when I went to sleep. I still occasionally do that.
I once used the excuse that my father was eaten by a window, but people didn't believe me. Those selfish jerks.
In all seriousness now, windows scare me, I can't look out of a window, mostly at night for more than 3 seconds stright without closing my eyes or looking somewhere else.
Jesus Christ.