It is denial that turns people into sheep. Sheep are psychologically destroyed by combat because their only defense is denial, which is counterproductive and destructive, resulting in fear, helplessness and horror when the wolf shows up.
Denial kills you twice. It kills you once, at your moment of truth when you are not physically prepared: you didn't bring your gun, you didn't train. Your only defense was wishful thinking. Hope is not a strategy. Denial kills you a second time because even if you do physically survive, you are psychologically shattered by your fear helplessness and horror at your moment of truth.
Gavin de Becker puts it like this in Fear Less, his superb post-9/11 book, which should be required reading for anyone trying to come to terms with our current world situation: "...denial can be seductive, but it has an insidious side effect. For all the peace of mind deniers think they get by saying it isn't so, the fall they take when faced with new violence is all the more unsettling."
Denial is a save-now-pay-later scheme, a contract written entirely in small print, for in the long run, the denying person knows the truth on some level. And so the warrior must strive to confront denial in all aspects of his life, and prepare himself for the day when evil comes.
If you are warrior who is legally authorized to carry a weapon and you step outside without that weapon, then you become a sheep, pretending that the bad man will not come today. No one can be "on" 24/7, for a lifetime. Everyone needs down time. But if you are authorized to carry a weapon, and you walk outside without it, just take a deep breath, and say this to yourself... "Baa." This business of being a sheep or a sheep dog is not a yes-no dichotomy. It is not an all-or-nothing, either-or choice. It is a matter of degrees, a continuum. On one end is an abject, head-in-the-sand-sheep and on the other end is the ultimate warrior. Few people exist completely on one end or the other. Most of us live somewhere in between. Since 9-11 almost everyone in America took a step up that continuum, away from denial. The sheep took a few steps toward accepting and appreciating their warriors, and the warriors started taking their job more seriously. The degree to which you move up that continuum, away from sheephood and denial, is the degree to which you and your loved ones will survive, physically and psychologically at your moment of truth.