I forget where I read it, probably here or in the FAQ somewhere. It was an analogy to Gurkas and Khukuris being like French chefs and their big chef knives. The point was that a French chef spends so much time using that thing that it becomes an extension of his hand. It is a tool, but if he needed it to it would be a devastating weapon because it is so natural in his hand, he would not have to think about using it. The same is true for the khukuri in Nepal. It is in such common use as a tool, that turning it into a weapon is as much a matter of familiarity with the way it handles as anything else. A lumberjack and his axe would be the same. Also a carpenter and his hammer. I guess anytime someone uses a tool so often that it is an extension of themselves, making it into a weapon is second nature. This is probably the best kind of weapon too, that which is so familiar that it requires no "training" to be familiar with it. Then your stlye of fighting becomes a matter of learning how not to get hit, or leave openings in your defense more than how to hit, or mount an offense. It becomes more a strategy of the mind, than a system of moves for the body, as the moves are already there.