Inside a cafeteria-style dining area, a diner is eating a partially consumed meal from a metal tray

Inside a cafeteria-style dining area, a diner is eating a partially consumed meal from a metal tray. In the background, a person wearing a blue shirt, black pants, and a surgical cap or hairnet is working near a beverage dispenser. They are using a white chair to access something under the dispenser. A stainless steel container rests on the chair. A fire alarm is visible on the wall.