Or.... she could be running FROM a threat (rapist, mugger, murderer),
Highly unlikely. Regardless, it doesn't matter who the threat is, if someone comes through my door uninvited, I will be very well-prepared to drop him/her/them in his/her/their tracks. It depends on the situation highly, and I will likely repeat this fact: if I am alone, I will be more likely to allow a strange person into the home. If I have additional liability issues, i.e. brother, gf, parents, around nobody gets to barge in the house, regardless of the reason. I have a much greater duty to protect my loved ones than I do myself or anyone else.
or she could be freaked out by being in or witnessing a bad car accident and looking for help.... I wouldn't expect her (he/she/them) to necessarily be doing the "logical" thing in one of those instances....
BS...I would venture a guess that nearly 80% of Americans have cell phones now. You see a wreck? Ok. Call 911. Also, if I tell you "if you come through the door, I will shoot." You should take the time to explain yourself. If I didn't have any family in the home, I may let you in. If family is around, I won't let you inside, but you are more than welcome to sit on the front deck and call 911 when I toss the phone out the window.
So she finally makes it into your house and..... you blow her away..... oops, turns out she's a mom of 3 that just got carjacked with her kids still in the car...
Hmm..."If you come through that door, I am armed and I will shoot." It doesn't get much more clear. I will make every effort not to shoot, even explaining that I will if forced to. If she is the victim of some sort of event like this, what is barging into my home going to do?
oh well, anyone banging and kicking on your door should just know that they're a threat, you can't take chances withe these things.
If I say that you are a threat, then you are. It is my home, my family, my safety that concerns me first. Again, if I tell you to back off, you damn well better do it.
Sorry, I didn't grow up in a generation where, by and large, society was full of good people. I am 25. My entire life has seen the scams and cheap tricks that 'people' pull on each other. I am a little more cavalier when alone, but if I am surrounded by my loved ones, I prefer to err on the side of caution and throw general concern for the whole of society out the window.