I'm on really rough, unfinished sidewalk concrete. Not smooth -- bumpy.
I start my impending nasty face plant with my left hand leading the way to the earth. In the split second that seemed like forever on the way down, I see myself pulling my hand in to gently touch the concrete, and I roll to my left. Not a pretty roll. Pretty awkward, in fact. But I end up on safely my side/back, shaking my head.
There is no doubt in my mind that if I hadn't been been falling to the mat hundreds of times a week for the past 20 years, I would have certainly bloodied up my left hand really badly, and very probably broken or at least sprained my wrist.
As it is, I sustained a tiny bruise on my left hip, a little strawberry on my left elbow, and a minor abrasion on my right hand. My left hand -- that's the one that frets the strings of my guitar -- is unscathed.
Another minor victory for klutzes everywhere.