[CaptainHaplo]

So I refer back to the original premise...

Person pulls a knife (even a small pocketknife) on you while your out and about. Regardless of why they do, I think its safe to say we all agree that pulling a knife on someone is not the proper course of action unless you are threatened and have nothing better. So let's say it is unprovoked (via physical aggression) - should you have the "duty to retreat"?

If not, why not?
If so, why?

I am looking for folks to put their viewpoints out there with an explanation - like platapus did. It provided a foundation for the discussion.