One single punch can kill you. You don’t have to bang your head on the way down after being knocked out either. The punch itself is all that is necessary to kill you. Every able bodied person is equipped with 2 fists as well as the even deadlier feet. Everyone is worried about firearms in the wrong hands, but what about the “wrong hands” in the wrong hands? Fists and feet are deadly weapons and are regularly used as such.
Did you know that you are 4x more likely to be killed by another persons hands and feet than with a rifle of ANY type? (even with the super scary tacticool semi-auto ones included) FBI Stats
You have no obligation to let people attack you, even with bare fists. Retreat if you can, but do not hesitate to use force to protect your own life. Including deadly force. If someone advances upon you while you are armed and indicated that you are threatened and will fire if advanced upon then they are a deadly threat. Every police officer is taught this in academy, armed citizens should be just as prepared.
No one has the right to assault you, ever. You always have the right to defend yourself from harm.
Boxers describing a classic knockout punch talk about snapping their opponent’s head back or turning it around. That’s because punching someone unconscious—or killing them—usually results from the rotational forces placed on the head, not from the direct impact of the fist itself. A hook to the side of the head, or an uppercut to the chin, can send the head spinning, which breaks blood vessels inside the skull. In these cases, victims may die of internal bleeding hours after the fight, with friends and emergency medical personnel never realizing what was going on.
Sometimes the rotational forces on the head leave the blood vessels intact but stress the neurons to the point that they cease to function normally, causing a loss of consciousness. The victim then smashes his head on the concrete, which causes bleeding or other catastrophic brain injury. This scenario played out in 2003, when a drunken bar fly in San Diego killed a former Marine with a sucker punch.
Remember one punch can kill. Austrailia: One Punch Can Kill
What do you think: Are fists deadly weapons or not?