Airplanes are an environment where hundreds of people are packed side-by-side in a metal tube for many hours high above the earth’s surface. Passengers hail from all walks of life have almost nothing in common other than that they happen to be on the same flight. Aircraft is one of the most important places for passengers and crew to maintain proper airplane etiquette. Arguments that get out of hand can force the aircraft to divert, and that can result in fines and compensation charges against troublemakers running into the hundreds of thousands of dollars.