hello JOEThis is the kind of crap that just blows my mind. The idea that "learning" a couple of knife defenses is enough to use during knife attacks is laughable. And the technique in that video will do nothing but get someone killed. Read this article about Guy Mezger.
http://www.cagepotato.com/awesome-s...woman-from-knife-wielding-scumbag-last-month/
Mezger really messed up the knife attacker. But just know, Mezger is a world renowned martial arts champion. He's fought all over the world, against some of the best fighters in the world, in the biggest organizations in the world, including Pride and UFC, and over 200 pounds. The attacker was much smaller than him, like 150 pounds, and not even close to the level of fighting skills Mezger has, and was still able to do this:
http://middleeasy.com/images/stories/Author_Zeus/2012/01.5/mezger_hand.jpg
Now, is that a risk you really want to take if this was, say, at the end of your shift?
If someone comes at you with a knife, and you have a gun, would you put your gun away and put up your fists?
Do you know how body position when someone attack by knife ?
did you watch the two video and detect that position ? which second ?