At least, that’s the role Rivera played Tuesday, when he helped to chase down a man who tried to rob a woman at an ATM machine in Courthouse Plaza.

Rivera, an employee in the county’s Commissioner of Revenue office, had just picked up sushi across the street from his office when he saw a man running and someone yelling “thief!” Dressed in a shirt and tie and still holding his to-go box of sushi, Rivera gave chase. Soon, he was joined by two other men, one of whom was calling police on his cell phone. The suspect, a tall, physically imposing man in his mid-20s, tried to flee into a nearby residential neighborhood.