So you would fire randomly into the dark when your family members are in the house? Is that what you're saying?
"If I take death into my life, acknowledge it, and face it squarely, I will free myself from the anxiety of death and the pettiness of life - and only then will I be free to become myself." ~ Martin Heidegger
I think we should agree on a few ground rules. Lets establish that most legal gun owners are responsible and are trained to use their weapon(s) properly, and not some trigger happy, nervous and irresponsible wannabe heroes.
We should also agree that no one is forced to purchase or make use of a deadly weapon. So lets quit the back and forth snark and admit that non of us know for sure what we would actually do, but chances are, for pure survival instinct's sake, we protect ourselves by any means possible.
You said "men with guns". Now, I watch a lot of movies where the good guy is able to kill 15 bad guys while only suffering a bullet graze to the shoulder.
In your supposed scenario, reaching for my gun would probably be the last thing that I'd ever do upon this earth.
I'd want a gun if I'd stayed up late watching movies. If I'm sound asleep, my gun would have to stay hidden.