Very few things in this world will get somebodies attention faster than biting off their nose and spitting in back in their face. I had a buddy tell a tale of the time he was minding his own business and had a much bigger guy start giving him a hard time. He told the guy he did not want any trouble and as we all know this just riled the aggressor all the more. The big guy started jostling my buddy around, they took a few punches at each other which was to the big guys benefit and finally the big guy got my buddy in a very tight bear hug, frontal style and was wise to the old head butt and was quite literally crushing the breath out of my friend who in desperation managed to maneuver himself close enough to quickly snap forward enough to bite into the nose of his assailant, the guy started screaming but would not let go and my friend bit harder until the guys nose just popped into his mouth, he was having a tough enough time breathing and spit the nose into the guy's face. Everything came to a stop, the guy was bleeding profusely and screaming, the bar went silent all eyes on the bleeding thug who was screaming and crying, my buddy had a friend or two that got him outside and away...saving him from a savage beating or maybe worse. He never went back to that small town, no need to in his line of occupation. I always kept that in the back of my mind, when just about all else fails, bite the guy's nose off. I would never forget to bite when fighting for your life and fortunately never needed to resort to biting but was trained at one time with the knowledge that a human is well equipped to bite large chunks of meat off another person, its just the idea that goes against our upbringing about not biting...its the savage thing to do.