" In a moment of crisis , your body takes over . It knows what it needs to do to keep you alive, and that's what it does. This instinct for survival comes from your reptilian brain- most basic, simplistic part of who you are. Your reptilian brain breathes for you. Digest and defecates for you . Watches out for you. And if it deems the threat high enough - it kills for you. "

― Barbara Nickless , Blood on the Tracks (Sydney Rose Parnell, #1)