I just got back to the thread, but it appears you've already what I was going to post.
I agree it's always better to avoid the fight when possible. It seems where we differ is that you define and assault and a threat of an assault as the same thing. The threat would fall under the menacing statute and there is no provision for defensive physical force.
Your parking lot scenario is just that, a case of menacing and no I wouldn't stand there and wait for the bad guy to get to me either. Of course that's not the same thing as the bad guy being bad breath distance from me and physically attacking me with the bat. Is my life in danger? Yes! Am I justified in using deadly force? Yes! Respond accordingly and repeat as necessary.
By the way I don't consider myself a tough guy, but I am dangerous when the situation arises and teach my students to be the same.
"Let us speak courteously, deal fairly, and keep ourselves armed and ready."
- Theodore Roosevelt