Doc_Jude
3rd Black Belt
Im not exactly sure what my point is, and I am going to sound a bit paranoid...but if you train yourself to always assume that the person approaching you aggresively has a knife and knows how to use it, you at least gain a split second in your reaction time. Just like the SuperBad movie...the cop walks into a party announcing "I assume you all have crack and guns!"...my motto have become similar, assuming everyone has knives!
This negates ALOT of techniques/methods.