What in the world are you talking about? The dog charged the cop — which is clearly not the same as a non-attacking male being shot because he was assumed to be a rapist, or a guy swinging his fist across the room behind plexiglass.
For a guy that claims to be contemptuous of illogical people, you seem to give yourself awfully wide latitude.
A man need not wait for an attacker (canine or otherwise) to cross an invisible property line before defending himself.
SnakeDoc
The dog ran across it's property. Unless it LEFT said property, it was no threat. Period. If you are not ON said property a dog not LEAVING said property is no threat.
Are you STILL having problems with this utterly simple calculus?