This
phenomenon describes how some people react to undesirable and uninspiring work situations. This
phenomenon is mainly applicable to people working boring, mindless jobs, most of whom perform rote work -- e.g., data entry -- or are paid simply simply for their presence -- e.g., a booth attendant. Activities that constitute 'shutting down' and checking out' include: napping, reading, sending excessive/
unnecessary text messages, and listening to one's iPod.