Hong Kong people let loose as soon as they leave the city
Hong Kong people love travelling abroad regardless of whether the holiday is long or short, and they go near or far, expensive or cheap. One reason everyone understands without saying is that once they are overseas they can let loose and do a few "silly things" they would not normally do in Hong Kong on ordinary days. The article points out that this mindset of only daring to indulge when abroad is a common driving force behind Hong Kong people's urge to travel.