Resident physicians may be an underutilized resource for identifying patient safety issues, given their presence at the front lines of care. However, like physicians in general, residents rarely report patient safety events. In this study, an educational effort that attempted to stimulate voluntary error reporting by internal medicine residents achieved modest short-term success, but the vast majority of residents still did not report any errors. No formal feedback was provided after residents reported errors—a common problem with voluntary reporting systems—and the authors acknowledge that the lack of feedback likely explains why the intervention was unsuccessful. A prior study used a financial incentive to successfully encourage residents to report errors and near misses.