Voluntary lateness and voluntary absence may be considered dysfunctional behaviours in schools. However, only few studies focus on the relationship between them and ethics. This study will explore the relationships between these behaviours and organizational ethics. Participants were 1,016 teachers. GLIMMIX procedure was used for a simultaneous consideration of voluntary lateness and voluntary absence. Results showed that lateness was related to formal climate and to distributive justice, representing "extrinsic ethical motivation factors." Absence was related to caring climate, representing "intrinsic ethical motivation factors." The findings may direct principals to focus on improving ethical perceptions among teachers through programs on ethics.