1. Key broke off in door
  2. Dog wouldn't eat
  3. Water cascading through ceiling
  4. Ran into old friend or acquaintance or hair cutter or teacher or colleague or dry cleaner or Peruvian guy who lives in a tent near the corner
  5. Set my alarm for PM vs. AM
  6. Dog wouldn't 'do his business'
  7. Hit snooze innumerable times
  8. Had to perform elaborate bed bug vanishing rituals
  9. Had to wait for super or Time Warner or ConEd or FedEx or DHL or UPS
  10. Existential crisis
  11. Had to finish a list for ListApp
    Suggested by @vp