When physiological needs are reasonably satisfied-when a person is no longer thirsty and has enough to eat, for instance-then or safety, needs become aroused .Once you have enough to drink and to eat, personal safety and security start to motivate your behaviour.
When American airlines announced in 2002 that it would lay off 7000 employees, the airline activated its employees' needs; the announcement surely prompted many to think less about promotions and colleagues, and more about keeping their jobs.