Abstract
Scientists who manage research laboratories often face ethical dilemmas related to conflicts between their different roles, such as researcher, mentor, entrepreneur, and manager. It is not known how often uncertainty about conflicting role obligations leads scientists to engage in unethical conduct, but this probably occurs more often than many people would like to think. In this paper, we reflect on ethical decision-making in scientific laboratory management with special attention to how different roles create conflicting obligations and expectations that may produce moral uncertainty and lead to violations of research norms, especially when combined with self-interest and other factors that increase the risk of misbehavior. We also offer some suggestions and guidance for investigators and research institutions.