by Andrew McCoy , Fred Sargent 

It never fails. Five minutes before the end of the workday on Friday, the phone rings. Just as the last remaining people in the office are ready to rush out the door and head home, a customer calls with an urgent problem requiring immediate assistance from one or more of the electricians who all left work to begin their weekends at least an hour ago.  To read more, please go to: http://www.ecmag.com/index.cfm?fa=article&articleID=13715 .