Any responsible master of Xuefu knows that it must never ever be used unless the very fate of the free world is at stake, or you are personally teetering on the brink of being torn to pieces by a horde of hungry tiger sharks with lazers on their heads. Or woman scorned. Under those circumstances, I find the lesser arts just don't measure up. I am personally relieved that this remarkable art is shared by only two people in the entire world. The temptation to abuse the knowledge is truly monumental, and most mere mortals would succomb quickly. For personal self defense in handling your average, everyday bumpkin street thug, rapist, mugger, gang of thieves, or angry mob, the lesser arts are quite enough in most cases. I haven't even told my wife that i know Xuefu. It is important that we keep this secret safe, and nobody else even gets wind of it!