Jeff Coopers 4 rules of Gun Safety
Rule 1: All guns are always loaded.
Rule 2: Never let the muzzle cover anything you are not willing to destroy.
Rule 3: Keep your finger off the trigger until your sights are on target and you are ready to fire.
Rule 4: Be sure of your target and what is beyond it.
Jeff Cooper knew the score - his columns in Guns and Ammo were required reading.
He didn't do it with one of these.
My husband caught heck from my daughter and I about those rules. He had just finished building his AR and proudly took a selfie posing with it. Finger on the trigger. Of course he knew it wasn’t loaded as he had built it and never loaded it but we let him have it anyway. As hard and as often as he drilled us, we couldn’t let it go. Lol