Safety management in construction workplaces can be challenging due to the dynamic, temporal, and hazardous nature of construction operations. The challenge becomes even more complex when multiple employers, subcontractors, and workers with sometimes diverging interests and incentives come together to work on complex projects. Not surprisingly, construction workplaces account for a disproportionate number of workplace incidents. In addition to the pain and distress these injuries cause, they also result in significant costs and workers' compensation claims that threaten the sustainability and success of many construction businesses. This case study presents an incident scenario that illustrates the challenges of managing safety in a multi-employer workplace.