Oh, for the love of...
1 - Shooting an unarmed assilant is NOT use of excessive force, as long as said assilant has made a threat of violence and is obviously and immediatley capable of carrying out that threat. (ref. Ayoob's In The Gravest Extreme) For example, if some big dude comes up, grabs you by the throat, and starts beating the crap out of you, screaming "I'll kill you, you *********!!", you can (and probably should) shoot him.
2 - Armed defense against an ARMED assilant is a matter of tactics and skill, and I'd hazard a guess that most people who keep a gun for defense have a higher level of skill at arms than the typical crackhead street criminal. To the point, Dr. Lott has conclusively proved that using a gun to defend yourself against a robber yields a higher possibility of surviving than any other course of action. That includes running away, meek compliance, or using a less effective weapon.
3 and 4 - I'm not even going to touch these, as they make no sense.
What a loser!
Later,
Chris
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"TV what do I see, tell me who to believe, what's the use of autonomy when a button does it all??" - Incubus, Idiot Box