" The best move here is to simply listen and maintain eye contact. Your calmness is a primal attempt to telepathically reflect the insanity back to the freak so they’ll realize they’ve gone off the deep end. This can be rough because the freakout may be pointed directly at you, but even under attack, your job is the same: Listen. Nod. Repeat "

― Michael Lopp , Managing Humans: Biting and Humorous Tales of a Software Engineering Manager