About 25 years ago when I was still in college I thought it would be cool to get a motorcycle. I rode it around for about a year with no problems until one day I was riding down this mountain road near where I lived and a deer ran out in front of my bike and I swerved to avoid it, I flew off my bike and into a ditch on the side of the road and was knocked out, my bike fell off the other side of the road and down a sheer cliff face. It was not obvious anyone has ever been there or that there was an accident. I laid there for almost a two days until people started looking for me after missing work. When I came to my legs were messed up, I had broken an ankle, elbow and wrist and couldn't move. I sat there for hours convinced I was going to die. I was pretty upset about it but after a while the anxiety washed away and I just went completely numb. My next memory was waking up in a hospital.
Thank god I was wearing a helmet.
How about you?
I have two from when I was a kid. Once I was waiting at a traffic light with my mom. The light turns green and I jump out onto a street without looking. Not even half a second later a car whizzes by just centimeters in front of me. It went by so fast I have no doubt it would have killed me had it hit. That was probably 20 years ago and I still always look both ways even when the light is green.
Another one was at the beach. I couldn't swim (still can't) so I was walking parallel to the shore in water up to my shoulders. At one point there was a drainage pipe or something and the current from it seems to have eroded the bottom, so as I'm walking the ground suddenly goes out from under me and I feel like I'm getting pulled deeper in the sea. Luckily my mom was nearby and pulled me out pretty quickly. I don't like going deeper than waist height into the sea since then.
I also had a more recent scary moment, which wasn't really near death, but could have easily been very bad if there was an oncoming car. Get good tyres and don't fuck around in the rain, kids: https://www.youtube.com/watch?v=VXTThHtUqLk