When you take a train in Argentina, if you take off your coat in the first-class carriage or the first-class carriage and plan to relax, the conductor will immediately warn you. It is reported that in the era of Veron's administration, he once shouted a slogan: "Take off your coat and work hard with a more relaxed mood." It is said that it will not only have no effect, but also cause disgust. Maintain decency and pay attention to etiquette-Argentine's habit in this respect has been deeply rooted.