So many of my my friends have fallen, three from equipment that failed and one who was too cocky to wear a harness and an icy lock-on got him.
This happened to me;
I fell about 30 years ago while putting up a lock-on. I was putting the stand in a cedar tree with a lot of limbs so I was unhooking my harness and passing the belt around the tree and rehooking as I passed a limb on my way up.
I was in a hurry, didn't look at my hook up, and leaned back against the climbing belt after I heard the safety catch snap. I leaned back about 12 feet up and my safety hook pulled loose, I think I pulled my shirttail in with hook and kept the safety snap open.
Out of the tree I went, backwards. I saw the limbs going by as I fell and thought "this is going to hurt". I rolled backwards in flight and hit on my shoulders and the back of my head, my back popped like a shotgun going off.
I knew it was going to hurt but wasn't prepared for the degree of pain I felt. It was so bad I passed out on the ground, then things got hazy, I would wake up looking at the sky, try to move, pass out again and come to with my face buried in the dirt. I also knew my wrist was broken.
I was finally able to get up to a standing fetal position. For some addled reason I thought I needed to take the lock on that was on the ground with me so I got back down on the ground, rolled into the straps and tried to walk out of the valley. No one knew where I was at, I was 45 miles from home and knew it was up to me to and me alone to get out.
I could only take 6" shuffling baby steps, my back felt like a bomb had exploded in it, then I started dry heaving. I knew I was going into shock, with each spasm from the dry heaving my pain doubled.
I finally got to my Ranger pick-up, got inside, belted myself in and pumped up the pneumatic lumbar support for my back. At this point I realized I hadn't locked my hubs in for 4 wheel drive and it was a rough road going out. I knew I couldn't out and in again so I floored the gas and hopped for the best.
I made it out to the locked gate, staggered out of my truck unlocked the gate, got back in and headed home driving with one hand. The pain was incredible.
I got home, honked the horn to get my wife's attention and told her I was in really bad shape and needed to get to the hospital.
At the hospital I had all the tests and was sent to an orthopedic surgeon. He set my wrist, looked at my xrays for about 2 seconds, said my back was OK and sent me home.
I was in bed and crawling to the bathroom for days, the pain was still out the roof. For the next year there was no way I could sit, stand or lay down for any length of time before the pain made me shift positions, then it got better and I recovered.
About 20 years later my back started bothering me again and I went to a chiropractor. He looked at my xrays and said "when did you break your back"? There it was, a huge jagged break in my vertebrae that was actually offset to the side.