A Hong Kong lawmaker has urged the government to enhance work safety protection after a landfill worker died on Christmas Day. Legislator Michael Tien wrote in a Chinese-language Facebook post on Tuesday that he had previously called on authorities to mandate safety mechanisms on machines used on construction sites. “How many times do I have to make my demands, how many lives do we sacrifice before the authorities chance their stance?” Tien said. His comments came after a worker at a landfill in Ta Kwu Ling, an area near the border with mainland China, died on Monday. According to the Labour D…