I mentioned that, right here: I also pointed out that this was more the problem of the instructor's instructor, for putting him in a situation he was not prepared for. The very best way to do that, is to build their competence in that skill. Gaining real competence in a skill, will give someone confidence that they can learn that skill, as well as other similar skills... like the other skills contained in the same martial art. I never said anyone should seek out these situations, whether weapons are involved or not. However, these situations can sometimes seek out people. If such a situation found a person, who had a false sense of confidence in skills that they do not have, they can make things much worse for themselves. In my opinion, that is on the person who gave them that false sense of confidence. Without that false sense of confidence, they would have just given the wallet or walked away, instead of believing in their own abilities.