Much of the discussion is whether you should wait for the bad guy to actually make his move or draw your gun if you think he might be making his move shortly. The reasoning being that in some areas there could be legal ramifications of drawing before the BG has actually threatened you.

Obviously a tough call. But only the person living the situation (not the kibitzers) has the feel for what is actually happening at that moment. He might be wrong, in which case he will either get attacked by the BG or face possible legal issues. Which is "better"? IMHO, it is better to draw than to hesitate by contemplating possible "legal" issues. If you allow yourself (or your loved ones) to be harmed because you are worried about interpretation of laws then IMHO you are wrong.