*Disclaimer*- I'm not responsible for any accidents you have whilst trying to perform this kick. I recommend that you train in a qualified gym to minimize injury from practicing any kicks. I do not encourage you to snap bones or strike to kill. I am merely pointing out areas where the body is weak and where a professional martial artist would strike depending on the situation of course. Taekwondo is a military art and therefore the traditional target areas are to stop people efficiently in a battlefield. All kicks should be used in self defense and with reasonable force.