When something happens in-theater, you're armed, you're surrounded by friends who are also armed, and there's a plan already in place for most emergencies. No matter what happens, no one goes through anything alone.
When something happens at home, you may or may not be allowed to be armed, you're probably surrounded by strangers who shift into mob-mentality sheeple and panic, only 1/3rd of them are armed and of that 1/3rd who knows what % can actually use their weapon effectively, and it will take the cops hours to set up a plan.
I feel safer out on a build project in southern Gaznie Provence then I do walking to the store at home. In theater, there's safety in numbers, at home, I'm an individual.
Now, in my state, if I saw my boss post 'no firearms' signs, I would smirk and start looking for another place to work, all the while carrying anyway. My life is more important then his bottom line.