From my wife’s great grandfather’s journal while living in Brazil in the 1920’s: “The weather was hot and the train stuffy so we slipped off our coats to be more comfortable. Soon the conductor made motions for us to put our coats on. We thought he would pass up the matter but in a little while he returned with two other uniformed men and insisted we put our coats on so we did. Thus we learned our first lesson in Brazilian custom. While in public, keep your coat on. We learned later you couldn't go to a movie (first class) without a tie.”