I have no children or even a wife, but I do have experience when you DON'T PAY ATTENTION.
Rule #1: The gun is ALWAYS loaded, even when it is not.
Rule #2: Keep the gun pointed down range and always away from self and others.
If someone (myself) had been a bit less overconfident when it came to the rules then I wouldn't have a bum right leg.
45 Long Colt does not so wonderful wonders to your health.