But this is exactly what you should do... If you decide to engage, your purpose should be to cause as much damage to the bad guy as fast as possible, but the goal of doing so is to make sure they no longer pose a threat. Shoot for the center of mass, shoot with good defensive ammo, shoot without consideration of whether the perp lives or dies, but stop pulling the trigger when the perp is no longer a threat to anyone. I thought I was being clear in my previous posts that I am not talking about tactics or point of aim, I am talking about the goal of pulling your weapon.3) trying to injure someone to the point that they no longer pose a threat is at best naive and at worst going to get you killed.