The document defines a grievance as any discontent or dissatisfaction felt by an employee regarding their treatment at work. It then outlines various potential causes of grievances related to working conditions, management policies, legal/contractual violations, and personal issues. The document also discusses negative impacts of unresolved grievances and different methods for identifying and addressing grievances, including exit interviews, gripe boxes, and opinion surveys. Finally, it describes the typical multi-step machinery used to handle grievances in a formalized procedure involving supervisors, management, unions, and potentially arbitration.