In the past, when flag ceremonies were at different times in primary and secondary schools, the national anthem was sung four times daily, and even the shoeshine boys nearby sang upon hearing it!
祖孫三代都是念中國書的校友不說，過去漢中、漢小一處上課，升降旗時間卻不同，國歌一天要唱上四遍。連校門附近韓國擦鞋匠口中哼的小調，都是咱的國歌呢！