I'll add the incident that is a dead tie with the carbon arrow blowing up. This also happened back in the early 80's. It was my first & last experience with climbing tree stands.
I was using a climber that I had previously put 10' up a tree, that I got to via tree steps. I had sat down on it with my bow in my lap and was just starting to buckle my safety belt when the bolts holding it together broke almost simulataneously, bang! bang!.
In the split second before I hit the ground in a tangle of stand pieces, I had the smarts to throw my bow (and it's quiver of arrows) as far from me as I could.
Think in terms of falling unprepared 10' intermixed with a garbage can full of scrap steel. I had more bruises, dents, cuts, gouges, and scrapes than an NFL team on Monday morning.
Never used a climber since then...