What are the special, interesting and unpopular occupations in the history of China?

Some occupations that are inseparable from people's lives in history are now being eliminated, and some industries that still existed in the early stage of "reform" have disappeared. For example: traditional carpenters, blacksmiths, sawworkers, dyers, traditional tailors, porters, tinkerers, porters, trackers, grooms, telegraphers, touts, housekeepers, maids, compositors, woodcut compositors, hand weavers, dock porters, wooden sailboat sailors, professional knives, professional wet nurses, traditional embroiderers and traditional kiln workers.