The authors use a half day per year for each resident class to measure Milestones that are challenging to measure in other parts of the curriculum. These exercises are conducted in 40 minute slots and evaluated by both residents and faculty. These focus on patient safety and professionalism. PGY 1 - Case scenarios based on reviewing incidents of errors in patient carePre-work: review Swiss Cheese Model videohttps://www.coursera.org/learn/patient-safety-systems-view/lecture/H5Fb4/swiss-cheese-modelPGY 2 - A series of scenarios with intervention choices, completed by resident in Survey Monkey prior to session, reviewed with facultyPGY 3 - Scenario using mock quality improvement report from practice, prioritizing issues and identifying interventions; includes conversation about interacting with state Board of Medicine