I agree with you at face value. But remember that Meth'd up gangsters are not capable of drawing distinction of the clear line you mention. For instance, one thing leads to another in the blink of an eye in these situations. For example, in my experience, I stumbled upon a theif in my garage as i was leaving the house late at night. I had no idea he was there. It was just bad timing for him. Yes, his intentions were initially theft as he had a few things gathered...and turns out he was looking for gas for his stolen car which was run out down the street. Long story short, when I startled him he decided "fight" rather than "flight". I rose to the occasion. During the altercation I was acutely aware that this could escalate to a full on home invasion/ robbery/ who knows! Anyways, my point is that our laws don't work on the lawless, and you can't reason with the unreasonable. I most certainly thought my life and family was in clear imminate danger...but the arm chair quarterbacks would say it was just a petty thief. If you catch a theif red handed, they can turn on you very quick. A property theft easily turns into someone tying you up and raping your wife. The line between protection of property and protection of life is most certainly breechable. Not necessarily as clear as you stated