They never show in the magazines the pictures of those wounded in attacks and how it impacts your mind and body because most have never seen such a thing. It is rare that the victim will get a hint of trouble. You will be responding to a threat, not trying to stop one in advance. Many victims will tell you that their instincts told them something was wrong but they ignored it. That fellow that knocked on our door and asked for someone that we never heard of can be pushed off as a simple case of having the wrong house, but in reality could be an attempt to see if we are home.
Criminals take advantage of our better acts and deeds.
Most people that carry weapons or are wise on self-defense methods are a little more street smart than the average public. You don't hear of many pro-football players getting mugged. The thugs seek out women, seniors, and the infirm. Drunks are a prime target, and often police decoy units use the facade of a drunk for decoy attacks. And they seldom fail to find a willing participant.