My thoughts are, if you threaten me or my family, then you are a candidate for death. Whether you end up living or dieing will depend on the situation and my subjective assessment of the threat level. e.g., Kick in my door and break into my house, not a whole lot of assessment needed there, I would shoot you dead on the spot. Stand in my front yard and scream "I'm going to kill you if you don't give me your supplies" will be situational. Be aware, you are never going to get any supplies if you "ask" like that. At the start of a SHTF scenario, this kind of behavior is most likely from desperation, is probably not a grave threat to me, and most likely you would be given the opportunity to leave my property alive. However, the time may come as the SHTF scenario goes on, behavior like this will indeed get you killed. It is my subjective call, there are no rules or precedents that I am forced to follow. I will decide based on that particular scenario on that particular day. My decision may be influenced by trivial things, like if I didn't sleep well the night before. Or how mean you look. Too bad for you. My recommendation is for you not to engage in risky behavior like this and think you are in any way protected. My plan is for trespassers to never know if they are going to go away with a donut, or a bullet. Keep 'em on their toes and on their best behavior.