I have a CHP and carry everyday. I’m amazed at the gun owners who forget they have a pistol in their carry-on luggage or forget to leave their firearms in their vehicles when they go into restricted areas. That pistol on my hip is always in the back of my mind, and knowing where I am, where I’m going and who is around me are all there, too. If someone is too preoccupied with upcoming events to pay attention to these kinds of things, s/he shouldn’t be carrying that day.
Or shouldn't be carrying at all. My sister stayed at my home the last couple days. She always manages to forget her possessions, losing track of them, and goes into panic attacks. Been going on the last few years, getting worse. While waiting for a table in a restaurant Saturday night, she forgot her purse when we got seated, and panicked while I went back to retrieve it. Constantly lost her phone, keys, purse etc. over the last few days.
I always wondered how in hell could people forget their possessions, including babies in or on a car, having no sense of awareness of keeping track of what they have on or with them. Especially a baby... or a firearm. So yeah, maybe cut the guy some slack for forgetfulness. But maybe he shouldn't be carrying at all if he's that absent-minded. That's what helped Kate Steinle get murdered; an LE lost his gun and we know the rest.