What is the spookiest/scariest thing you've seen/heard/experienced in your life?

Mine would be when I was watching porn on my laptop, my mother suddenly entered the room and the porn window froze. Luckily, she didn't walk near the laptop. Jk, but this was still true and was still horrifying.

A couple of years ago, I was in my room sitting near the window and I was on my laptop because I was finishing a school project. It was already way past 12 Midnight when all of a sudden, I heard several children laughing outside my window. I immediately saved my project and immediately went to the living room, turned the lights on, and slept on the couch. That was a major "Oh hell naw" moment for me.