I think PBASS hit the nail right on the head.
From my perspective, I can neither carry a gun or any other offensive weapon. I have a utility knife, but unless I plan on "paring" the other guys skin off of him it's not of much use!
What I would appreciate from some of the more learned members here, is tactics for attacker has knife and you don't ... I know run the hell the other way is a wonderful tactic, but not always realistic.
I do know some martial arts (no expert); I know the basics of blocking and using the opponents inertia against him. I wear Kevlar gloves most of the time.
However, if my back is against the wall so to speak, am I screwed or is there some usefull info out there for some poor shmuck like myself who might just be in the wrong place at the wrong time?