   Must not succumb to the dark side!
  I get sleepy before work, and often drift off into a light nap and end up being late.   What is this strange phenomenon? 
  The "strange phenomenon" is "lack of coffee" ;  The "strange phenomenon" is "building up tolerance to coffee" ;  The "strange phenomenon" is "the work of Miss Cleo and has nothing to do with coffee"  ;  Morphee wants you back, because you dont give her enough of your time !   Sancte Isidore ora pro nobis !;  The "strange phenomenon" is "crack withdrawal" 