“Principle number one: Let the person say what he wants as long as he does what you say. I even tell cops that. I say, “Let them chip at you as long as they’re cooperating with you. What do you care what they say? Your attitude should be ‘Say what you want, but do as I say!’” The only time this would not work is when the words the citizen uses serve only to inflate him with adrenaline, making him or his companions more of a problem. The officer has to carefully watch a person’s body language to see when he might explode from his own initiative. It’s important to intervene before these situations get out of hand.”