Who takes a nap in another room while babysitting a 5 year old anyway?!
This. As the Father of a 10, 6, and 2 year old... You do not simply wander off for a nap while there are kids still awake themselves.
Nor do you leave a loaded firearm on the coffee table while doing so.
I have plenty of loaded firearms in my house. After all, what use are they unloaded? But, the kids know where they are, that they aren't supposed to touch them, and they are kind of inconvenient for anyone other than an adult to access easily (top of book case, in a safe, in locked cases, quick access storage box, etc...). Even though my older two have already learned the basics, I would still never dream of leaving a loaded gun on the kitchen counter while I wandered off to do whatever...
2-6 years? Yeah... At the minimum.
Who takes a nap in another room while babysitting a 5 year old anyway?!
***
And leaves a gun on the coffee table.
that too