one day last year I was in the gym and went to the lat pulldown machine in the middle of my workout. someone had it on 200 lbs or something, so I pulled the pin out of the weight stack, and the entire attachment fell on the back of my head. this was a really heavy metal attachment, must have been like 20-30 lbs fell on my head. I got really dizzy for ~30 seconds and had a big bump on my head, but that was somehow all that happened.
to this day, I'm kind of scared and cautious whenever I change the weight on those machines.
I had alcohol poisoning that lead to a seizure. I was in a induced coma for a few days, put my mom through hell rest her soul. I'm lucky I didn't suffer any long term damage from that incident. Thankfully I'm sober now, even though I relapsed a couple months ago, I usually get real long terms of sobriety in between little hits when I fall off the wagon usually because of a life incident.