“You know those FBI shows on TV? Where they do the profiling?” “Yeah.” “Cops hate that stuff. While it's all well and good to sit behind a desk and have assigned characteristics and fancy medical names for criminals,” Jerry said in a prissy voice, “at the end of the day, you just don't know what anybody's gonna do. You gotta prepare for everything. Human beings are unpredictable. After three decades with PD, I still get surprised.” FbiPolice WorkProfiling Book:Creep Source: Creep