biting your tongue is proof that a life time of practice does not equal perfect. I never understand rock climbing and other activities that can lead to death by a single mistake.
Yep, broken bones at the least.
Very possibly crippled for life.
Or it can kill you.
Apparently happened to one guy from high school; not long after we graduated. He was rock climbing ..... and fell.
I didn’t know him at all but I knew his name. From what little I knew, decent enough of a guy. Barely made it into his 20s.