It started when we boarded the plane after a 1.5 hour delay. My son, who is 7, got on the plane just ahead of me. He was very sleepy since he had been up since 4AM Pacific time. The male flight attendant said hello to him, and my son didn't answer, and the flight attendant snapped at him, "You say hello back when someone says hello to you."

That was just the beginning of a loooong flight.