Contemporary Marketing, 2013 Update 15th Edition by Louis Boone ,David Kurtz

Exercise 10

Some retail firms protect their inventory against theft by locking their premises after hours even though maintenance and other workers are inside the stores working all night. Employees have charged that they are forbidden to leave the premises during these hours and that during an emergency, such as illness or injury, precious time is lost waiting for a manager to arrive who is authorized to unlock the doors. Although workers could open an emergency exit, in some cases they claim that they will be fired for doing so. Employers assert that managers with keys are on the premises (or minutes away) and that locking employees in ensures their own safety as well as cutting down on costly "shrinkage."
Under what circumstances, if any, do you think locking employees in at night is appropriate?