there were six-key rooms, where six nurses were required to be present when the door was opened. They worked as a team, ensuring that the patient was properly restrained, each entering or exiting the room one at a time, and each with a role to play in the restraint. At the end, when a patient was taken back to his room, he would be placed down on the bed, with each nurse leaving one at a time, from the nurse furthest away from the door to the nurse closest to the door.
