In this study, the researchers analyzed stories told by students (n = 80) of their poorest K-12 teachers who behaved in an unprofessional manner. Nine dominant themes were identified: poor teaching; learning not occurring; poor communication with students; uncaring; no explanations; being overly emotional; high school teachers; off-task behaviors; and poor classroom management. Illustrative student stories were provided. Implications of these stories were discussed. This publication aligns with the Interstate School Leaders Licensure Consortium (ISSLC) Standard 2: "An education leader promotes the success of every student by advocating, nurturing and sustaining a school culture and instructional program conducive to student learning and staff professional growth."