well It's predicated on the collapse of civilisation as we know it, if you came onto our property desperate needing help and willing to follow instructions, we would help you of course, but if you came in like you own the place helping yourself to whatever you want, we would shoot you in the face. seems perfectly reasonable for a fit and proper person wouldn't you agree.
P.S If it's the misses aiming at you, your safer if you keep still, she couldn't hit the barn door at 20 paces