An individual Dead Corpse?
You sort of remind me of the following rule from Murphy's Laws of Combat: Be polite. Be courteous. But have a plan to kill every person you meet. That's not necessarily a bad thing, either!
Now that the grammatical lesson is over...
I would agree that said quoted Rule is not a bad thing. As an operating principle, it can come in very handy to keep in mind. Situational awareness is not only key in responding to a bad situation, but in avoiding them as well.
Now why people like me should remind of that is somewhat of a mystery. Being an Objectivist, the non-iniation of force/fraud/theft doctrine pretty much defines my general philosophy of human interaction. Play nice, and you have absolutely nothing to worry about from me. And no, I don't expect you to have to take my word for it. ;-)