If my math is correct, he needed to change his underwear about 0.06 seconds after pulling the trigger. That’s when he realized he’d made a mistake.
As for using the tree for cover, yeah, no, that’s not going to work.
At least he kept his muzzle away from the camera guy, and if you slow it down, it looks like he took his finger off the trigger, but I bet he didn’t switch it back to safe.
In case you wonder how I came up with .06 seconds, I rounded off the muzzle velocity, took a wild guess at the distance, and got a calculator.
Of course, no eye protection either.
Firearm safety comes first, even if you are going to do stupid things. The target almost won that round.