A fire captain was on active duty on a 24-hour shift when he was playing basketball with fellow firefighters and members of the public in a city park near the fire station. While reaching for the basketball, he felt a pop in his right arm and experienced pain. The city’s fire chief said it was common for firefighters to play basketball during their shifts. He explained that playing basketball was considered "in their quarters" for purposes of their collective bargaining agreement. He also stated that it was important for firefighters to be physically fit. The Wisconsin Court of Appeals held that the captain was entitled to benefits.