The Bristow/British Caledonian uniform caused a minor diplomatic incident in Abu Dhabi back in the mid 70's. Seems a new Bristow pilot decided to wear his brand new uniform when he flew to Abu Dhabi from England.
Upon entering the terminal, Customs and Immigration waved him on through believing that he was part of the British Airways crew. When Bristow submitted his passport to obtain a work visa, it was discovered there was no entry stamp - therefore he had entered the country illegally. Well needless to say, there was quite a kerfuffle.