The job of a flight attendant is much more than simulating the correct use of an oxygen mask and serving food during the flight. To a large extent, flight attendants are also responsible for the safety of passengers, so they must be very knowledgeable about the course of the flight and the aircraft. That is why every flight attendant is included in a few months of training, in which she gets to know all the necessary information - and some of it can shock. This time, the flight attendants reveal the facts about air travel that the airlines don't hang on the big bell.