Oh wow, I have a few of these.
1. Being bullied at school. For a whole year. Without anyone ever picking up on the signs that I'm a victim. Until I happened to bump into my long time best friend, who I'd lost all contact with after she was sent to boarding school. Seeing her at school that day was probably one of the happiest days of my life. She put an end to over 200 days worth of bullying in a matter of an hour. She got a slap in the face from my bully for it too. Will NEVER forget how we laughed afterward.
2. Watching our family pet having the final spasms of death in our backyard. I had to carry her to the outdoors toilet to keep the other dogs from getting at her, because my brother wasn't home to do it. I remember picking her up, how surprised I was at how limp and heavy she was, feeling her insides shift, and being peed on. It was awful because she was already gone.
3. Rubbing a bullfrog. I was lying on the floor in our lounge watching TV, felt something itchy on my back and reached behind me. Felt something soft and slimy, ran my finger over it twice before I realised it was a frog. I flew up screaming like a crazy person. I think everyone else had gotten a bigger fright than I did.
4. Receiving the news that my cousin, fresh out of high school, had passed away in a head-on collision.
5. Receiving the news that my uncle was murdered. Hell hath no hatred compared to how I felt (and still feel) about it.
6. Passing out during labour. It was the scariest thing ever. Not once, not twice, but three times. I really didn't think I was going to make it through.
7. Watching an African thunderstorm. It was my hubby's friends' wedding. They live by the coast in Durban, and they got us accommodation for one night at a lodge. It was a little wooden cabin that we shared with the rest of his family. It started raining but we went and sat outside on the stoep (porch, I mean) on this little bunk, and we had a panoramic view of the ocean. It was well past 11pm so we could see buggerall really, but watching the lightning dance across the surface of the ocean is what I term as magic. Was an unforgetable experience for me, writing-wise. The mood wasn't all that magical though, since my hubby was not a happy chappy, I was not a happy chappy, and I was heavily pregnant with my first and really didn't want to GROVEL for him to go back inside with me, because I dislike that family.
8. One of the kids dropped a cup a year ago. I picked it up and put it in the sink because it was still whole. When I was doing the dishes, I didn't see that it had cracked right around, so when I shoved my hand into it to scrub the stains out of it, my hand went straight through the cup. It cut right on the knuckle of my thumb. It bled for a good few minutes, and I mean it was GUSHING blood. I remember looking at it and thinking, wow, so this is a little taste of what a bad battle wound must look and feel like. And then I got lightheaded from blood loss and freaked out. I got a cool scar left from it
And it hurt for a long time even after it had scarred, too.
That's all I can think of off-hand. I've got a lot more.
I've also had the reverse effect, where I DON'T do something because I've read one book too many where the protagonist does it and it doesn't turn out well for them. We've got this little 'basement' area behind our garage, under the house. It's pitch black in there, and there's no light or electricity in there. My hubby went exploring with the torch but I can't force myself to set my feet in there. I keep thinking some demon or ghost is going to come crawling around the corner and...well, I don't really know. I think I write too much horror.