Related:

• Random events tend to occur in groups. -- Tylczak's probability postulate
• My life is not organized around high probability events.
• Of two possible events, only the undesired one will occur.
• Dude's Law of Duality: Of two possible events, only the undesired one will occur.
• People in groups tend to agree on courses of action which as individuals, they know are stupid.
• Random emergencies tend to accumulate to await the most inconvenient time to occur simultaneously in the most disastrous manner.
  The person in charge at the time will be the most inept....
• The spirit, the will to win, and the will to excel are the things that endure.
  These qualities are so much more important than the events that occur. -- Vince Lombardi...
• Most accidents in well-designed systems involve two or more events of low probability occurring in the worst possible combination.
  -- Robert Machol...
• In any series of calculations, errors tend to occur at the opposite end to the end at which you begin checking for errors.
  -- Grelb's Law of Erroring...