Related:

• Kohn's Corollary to Murphy's Law: Two wrongs are only the beginning.
• Two wrongs are only the beginning. -- Kohn's Corollary to Murphy's Law
• Yeager's Law: Washing machines only break down during the wash cycle.
  Corollary: All breakdowns occur on the plumber's day off....
• COPYING MACHINE: A device that shreds paper, flashes mysteriously coded messages, and makes duplicates for everyone in the office who isn't interested in reading them.
• 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.
• Howden's Law: You remember to mail a letter only when you're nowhere near a mailbox.
• Whenever you set out to do something, something else must be done first.
  -- Murphy's Law Corollary 6...
• There are some things that are impossible to do, but it is impossible to know what they are.
  -- Corollary to Murphy's Law...
• You are a tower of strength in the office, but only so-so in bed.