Great videos. Just shows you that it is not as easy as it seems. Avoidance of the bullet\knife if one thing, taking it away is something else. IF you have managed to do those two, you need to control the situation. Having someone who has just tried to run you through "be quiet while you make a phone call" isn't going to happen either unless they are rendered unconscious. Have practiced these things for years in the dojo. Tell everyone it's fine when you are in a contriolled evironment. The street isn't. When you get all of the pads and protective gear on and you play the bad guy who is not going to let you take them down usually becomes very realistic for students and makes them change their thinking.