...commit egregious violations of Rules Two and Three.
If he hadn't had his booger hook on the bang switch, and hadn't compounded the error by pointing the gun at his buddy while doing so, nobody would be limping right now.
Remember, kids: The Four Rules are life. You have to violate two of the four to pull off a stunt like that copper.
1. All firearms are always loaded
2. Never let the muzzle of a firearm point at anything you are not willing to destroy
3. Keep your finger off the trigger until you are ready to shoot
4. Be sure of your target and what is behind it