Whoa, you must be cool. I dont think most people carry a knife for stabbing people. Especially people as badass as you. They are useful tools, and come in handy. If one was needed to save a life, that works also. I have news for you. If you think that you would be able to draw a firearm, under a close quarter sudden attack, your sadly mistaken. In law enforcement, there is a rule called the 21 foot rule, and it has been proven that a officer cant draw a gun and get a clean shot off when a attacker with a knife is within 21 feet. This is only for trained officers and doesnt take into account your extreme level of awsomeness.
And I also have a gun on me at most times, legaly of course, the knife is for opening shit, cutting apples, etc.