Japan has its "Narita divorce," and Taiwan has its "Chih Nan split-up." Many Japanese go abroad for their honey-moon only to find that it is hard not to end up quarrelling after the hardships of travel. By the time they get back to Narita airport they want divorce. Following this reasoning, Chih Nan Kung is very high up on a hill and people are very tired after climbing there.
對此阮昌銳有一妙解：日本有「成田離婚」，台灣有「指南分手」，許多日本人結婚出國度蜜月，由於旅途勞累，難免爭執，回到日本成田機場就破裂離婚了；同理，指南宮那麼高，要爬上去實在太累了，是不是因此而容易起口角、裂痕呢？