In the early 90's there was a major marketing thrust to capture first-time pax with very low fares. As I recall, I was on a transcon in coach, with a middle-aged guy seated next to me in the middle seat. He was quiet and polite. I didn't pay much attention until about three hours or so go by and he starts fidgeting around. When I noticed him sweating a bit, I asked if everything was OK. He said it was his first time on an airplane, and was impressed with the whole setup, but darned if they couldn't improve things by adding a restroom. A smile broke out on my face as I knew that in about 5 seconds I was going to be this man's hero...