Why should you buy a knife or a gun ? Or any other weapon of self-defense ? If you still don't understand the necessity, you should watch these items on the web page.
There are always people who think that they are able to cope without a weapon, but that's a delusion. Don't think you can win a fight with a simple technique, you have to be prepared and you need to practice ! practice and practice !!!
I have seen a lot of guys who think that some fancy karate, ju-jitsu or aikido technique can do the trick against a knife, just forget it. In close combat the knife is the first weapon, it easily defeats a gun in close quarters. Buy the best knife that you can afford, buy a second and a last ditch knife, be prepared to use it, use it every day, practice your moves, how to draw a knife quickly, think about your clothing, should you use a neck knife as back-up ? Or do you know something better ? First choice on the streets is a plain serrated folder, at home you can safely use a fixed blade knife or even an axe and a gun and rifle (shotgun). Be prepared, it can happen to you !
