Jeff Cooper (1920-2006) was an influential small arms shooting instructor in Southern California who helped popularize improved techniques among cops like holding the pistol in both hands in front of your eyes rather than shooting one-handed from the hip like in 1950s cowboy movies. Cooper also propagated a color-coded list of mindsets that begins with the rather metaphorical sounding Condition White:

Condition White: Unaware and unprepared. If attacked in Condition White, the only thing that may save you is the inadequacy or ineptitude of your attacker. When confronted by something nasty, your reaction will probably be “Oh my God! This can’t be happening to me.”