Ian Brennan spent over thirty years teaching violence prevention, crisis resolution, and anger management to social work, healthcare, law enforcement, and educational staff. This slim volume collects the core, consistent lessons that those years provided. The curriculum was born out of working for fifteen years in locked, emergency psychiatric settings, mostly in Oakland, California. In those environments, utility was vital for survival. Mere theory would get your ass kicked. These techniques had to work or else immediate physical consequences would result.