As legally armed citizens we should not only be prepared to cause trauma, but to mitigate it as well. Airway, breathing, and circulation are the basics and you don't need to go to EMT-P school to learn it. If we are already on the scene and are not actively involved in the fight, be prepared to help other good guys with injuries. Be prepared to help victims and even yourself to survive the 30 minutes until the Medics can come in.