I live in the UK. so no gun option, but It's only me, my wife and my daughter. and to get to my daughter's room I have to cross the path of the front door.
so I would simply make a beeline for it. I have a 10 inch commando knife which would likely get pulled out. to intimidate more then to use. I'm a big fat lad so if i saw me coming charging towards with a big ass knife.. I'd be out of there.
either way.. nobody really knows until in the moment. but I have no reason to doubt my father instincts and my typical response is fight over flight. I'm not a runner.