Let me elaborate on "CYA is a bureaucratic disease".

The reason why people, and bureaucrats in particular, don't use common sense is to cover their asses.

You have a rule. If you follow the letter of the rule, and things go south, you can always defend yourself by saying, "Why, I followed the rules!"
But, if you exercise common sense... you're taking a chance. It doesn't matter if the little boy can fire a projectile out of his pop-tart and harm another; what matters is if some idiot parent out to make a buck, or some higher-level bureaucrat trying to justify his job, notices you exercising common sense; THAT is what will cause you grief.

When I was young, working for my father's masonry company, we'd get visits by OSHA. Now, we had the best rating for workman's comp, because my father was conscientious about not getting his employees hurt.
One day an OSHA twit came to the jobsite, noticed my brother and I not wearing hardhats. He tried to lecture my father, who showed him his supply of hardhats, showed him the workers who did wear hardhats, and told the twit that he supplied the hardhats, but left it up to the judgment of his employees whether they needed one at any point.
I refused to wear a hard hat. Back then, much of my job involved running back and forth along the scaffold, tempering mortar, stocking brick, being "gopher"...each scaffold section was six feet tall, meaning the space I had to duck under was just under six feet. With the hard hat on, I couldn't see the upper brace, and was constantly having neck pain from conking the hat against that brace. Without the hard hat, I had more clearance and could see the braces to avoid them.

Another OSHA twit came out one day and chastised my dad for not having a hazardous material warning sign up. My dad looked around... what hazardous material? The twit pointed to the sacks of mortar. My dad pointed to the hazardous materials warning on the mortar sack. The twit wasn't satisfied; we had to have a notice posted on the construction shack, because that's what the rules called for.
So... my dad cut the hazmat warning off a used bag, and nailed it to the door of the construction shack. That was good enough, apparently.
Gotta follow the rules. Why, if you don't follow the rules, someone could get fired... or fined.

And this was back in the 1970s...

Btw... Sally Kern is my State rep...

I'm thinking of starting a movement to rename the State, "Atlantis"....

CYA is a bureaucratic disease.