— By Bill Flynn — Preparedness is the best protection against workplace violence. Restaurant and retail workers have been on the front lines of the COVID-19 pandemic since the beginning. Every day these essential workers are exposed to the risk of violence, potentially exacerbated by societal stressors including health concerns, economic uncertainty, political divisiveness and social unrest. In that heightened emotional state, the threat of active shooters has only increased, evidenced by a recent study from the Journal of the American Medical Association showing that since April 2020, there …