Leaving is almost ALWAYS an option, and I teach that to my students during the appropriate classes.
I am often out of town for 1-5 nights at a time. Let's say that during my absence, all Hell has broken loose back home. Wife and kid are locked in the house, with chaos around them. I have to get from the Atlanta Airport area to my home to secure my family. I would feel more comfortable if I had more than just my duty handgun, no matter how many rounds I have for it.
What if you're broken down on a long stretch of unoccupied rural highway, very late at night? In that case, a long gun would make me feel more comfortable.
I’ve never really run this scenario thru my mind but now I’m rethinking a long gun choice cause I too am gone from home at times for long periods and things “could” happen.