It's fear, dude, just fear and you don't have to be Sun freakin Tzu to know that real fighting isn't about killing or even hurting the other guy, it's about scaring him enough to call it a day. Break their spirit, that's what every successful army goes for, from tribal face paint to the "blitzkrieg" to... what did we call the first round of Gulf War Two, "Shock and Awe"? Perfect name, "Shock and Awe"! But what if the enemy can't be shocked and awed? Not just won't, but biologically can't!