This is why we observe the 4 Rules studiously when we’re using firearms in a dynamic environment. The shooter in the video below enters a complicated shooting position, and when he exits he tries to get started quickly and loses his footing.
When you fall, your body does a whole bunch of stuff. Once your brain realizes that it is in fact heading towards the ground, it tells the rest of your body “OMFG BRACE FOR IMPACT”. Part of that involves clenching your hands and tightening the muscles in the forearms, as you’ll involuntarily use your hands to slow your fall. If your finger is in the trigger guard when this happens, you will have an ND. Not maybe, you will. If while you’re doing that you’re allowing the muzzle to cover something it shouldn’t, then you’re going to destroy something. In the video, as the shooter goes down his finger is off the trigger and the muzzle is indexed in a safe direction at all times.
This kind of finger and muzzle discipline doesn’t just come from plinking on an indoor range with your friends. It comes from years of practice and discipline with safe gunhandling; it stems from an awareness of the destructive capabilities of firearms and a healthy respect for other people’s desire to not get killed because you’re unsafe. The 4 Rules are not the 10 Commandments in that they’re dogma, but they’re a mindset. When you internalize those rules, and make the mindset part of your everyday gunhandling, you become a much safer shooter.
By the way, even with the fall he finished the Scrambler in around 50 seconds. That’s a pretty awesome run.