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.
When I was a teen, I fell off a gazebo overlooking a valley area in a park, about a 10-12 meter drop. About 30-40 feet for the Americans. I hit the bottom feet first and crumpled which was apparently the right thing to do, as I ended up rolling and not getting hurt at all.