1. You have given up your personal space and privacy. Get over it.
  2. You cannot stay asleep. Gravity will always win.
  3. You might sit next to or near someone who has an unpleasant odor. Just hope your flight is short!
  4. Your neighbor can and will read your emails and will correct your grammar and sentence structure in their head or out loud.
  5. Someone will cough and sneeze on you or in your general direction.
  6. People will yell at kids and parents because they think they have the answers to shut the kid up and they are the ultimate parent.