Human’s do a lot of stupid things.
If I am not mistaken gun safety rule number one is don’t ever put finger on the trigger until ready to fire. Number 2 is don’t put anything in front of the gun unless you want to shoot it. If your having issues you should always remove mag, and eject shell that is loaded.
You just can’t fix stupid, but I bet that bullet to the hand fixed this case of stupid… he won’t do that again!!