Good. I am all for shooting someone trying to steal your stuff. Because it is completely preventable. If you do not want to get shot, don't try to steal my stuff. Not rocket science. Heck, even low life theives should be able to understand that logic.
That being said, I likely WOULD NOT do the same, just because I don't want to have to carry another persons death on my conscience if I don't HAVE to. Seeing a battle hardened marine tearing up over people he HAD to kill years before, who were trying to kill him, convinced me of that.