"Let's go outside and solve the question". This is what, very American-like, the pilot of United Airlines' flight UAL842, from Sao Paulo (Brazil) to Chicago (USA), must have thought after an argument with a flight assistant. The only problem was that he was on board of the aircraft, a Boeing 767/300, about half way on his route. For this reason he decided to land in Miami, Florida, to disembark the...