For me, it depends. If a baseball bat was being used, I'd respond differently than if no weapon was being used. My first response would be to call 911. I wish I would have the ovaries to draw a gun and stop the bad guy in some fashion, but I'm not sure I could/would. Which is why I say "I'm not there yet" when it comes to conceal carry.
Honor Student: School of Hard Knocks
To the world you may be one person, but to one person you may be the world.
Quando Omni Flunkus Moritatus