This very same thing happened to our beretta92fslady awhile back,,, she wrote about her feelings then.
I agree that outside the home,,, the gun should be affixed to your body,,, then you cant forget it anywhere!!!
I was OCing at a coffee get together,,, and I brought another gun in a "book safe" rigged up
with a strap over my shoulder, like I was carrying my home work.
It is a method of stealth carry, good for states like calif, Illinois or New york.
I wanted to show off my deception for my friends.
Anywhooooo,,, After awhile we went outside for a smoke,,,
Then,,, I realized,,, I had left that "book safe" with a gun in it,,, on the table, unattended, in the coffee shop!!!
I went and got it, but my friends gave me some very dissaproving glaring eyebally looks...