I can remember during the time when I was working in a telecommunication company that we wouldnt’ be touching anything when our engineers would upgrade the system of the company.  The reason for that as what they say, to completely process everything without interruptions.  And when someone would press just one key on the keyboard or anything, the upgrade would not take effect.  So we would be happy when there’s an update for we could relax for several minutes.  We would be happy to relax for few minutes for working in a telecommunication company had lots of pressure from callers and subscribers.  But it’s fun!  Huh!  I’m just remembering the good old working days!