what scares you?

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Yeah, I could imagine sudden silence to be quite effective. Like, there's this really subtle ambient track playing - doesn't need to be music, could also be wind and the like - and suddenly it stops. I would probably not even recognize what's wrong at first, just feel that something's a bit off...

What also scares me are mundane things behaving strangely. Like, say, I walk through a room with some pieces of furniture in them and everything is normal. Then I return to the same room a few moments later and suddenly everything is arranged differently or piled against the wall. A door that suddenly opens into a completely different room. Or, a puppet is always turning it's head to face me as soon as I look away from it. o.O