I once sprayed paint right out of the can into my eyes while trying to clear a clog. I never did that again. I think I was around 10 at the time.
I (still) have a friend who as a kid hit a 22 round with a hammer trying to do something or other, and the bullet hit him in the knee, luckily he didn’t have to tell his parents but he shared his secret with me in Junior High.
My uncle was welding some repairs on the farm and told me not to watch him. I went around the side of the barn, peeked at him anyway, and flash burned my eyes. It subsided by the next day but I was miserable for that afternoon and night.
I once pushed the lighter on my mom’s car and then touched the red hot thing at the end. I had little round circle scorch marks on my freshly burned finger.