In the current chapter, I focus on how Correctional Services Canada’s Correctional Training modules centralizes prisoner health in informing correctional officer discretion and evidence how correctional officer recruits are trained to navigate their physical and legal vulnerabilities on duty. Specifically, I nuance the dominant perception of correctional officer training as prioritizing use of force, and instead present the co-response model that structures correctional officer decision-making by emphasizing de-escalation, communication, and proportional responses to potentially adverse events. I unpack how through training Correctional Services Canada recognizes and holds correctional officer recruits accountable for their actions, reactions, and discretionary behaviours, while also structuring recruit decision-making by enforcing a model that promotes a co-response between health care and security actors in prison. I speak to correctional officer legal vulnerabilities and the value of documentation for rationalizing actions.