My brother and I used to play hide and seek in the dark, and took it very seriously. We would close all blinds, cover all lights (microwave, oven, tv, etc), and had very well set rules. One night it was just my brother, his friend, and me, and we decided to play. As our eyes adjusted to the pitch black slight silhouettes could be made out, but generally you could be a foot away from someone and not know they were there. So my brother is it, and I'm sitting in the corner of the kitchen hiding. His friend yells safe, and I hear the two of them talking in the living room. As they're talking, the door to our walk in pantry starts to slowly open. I can see the silhouette of a large-headed man holding a knife and walking towards me. Literally frozen with fear, I just sat there ready to fucking die. When this knife bearing man got close, my brother came in and flicked on the light. The man pulled off his mask to reveal he was my brother's other friend who had been hiding outside unbeknownst to me just so they could scare me. At this point I was crying, and obviously didn't want to play anymore. Not paranormal and creepy, but I've never been more scared in my entire life. Cunts.