Related:

• Vital papers will demonstrate their vitality by spontaneously moving from where you left them to where you can't find them.
• Important letters which contain no errors will develop errors in the mail.
  Corresponding errors will show up in the duplicate while the Boss is reading it....
• Envelopes and stamps which don't stick when you lick them will stick to other things when you don't want them to.
  -- Fourth Law of Office Murphology...
• Second Law of Office Murphology: Office machines that function perfectly during normal business hours will break down when you return at night to use them for personal business.
• Place your clothes and weapons where you can find them in the dark.
  -- Lazarus Long, from Robert A. Heinlein's "Time Enough For Love...
• Get up Dog Boy! Show them where you come from, show them where you're going!