It’s dense with people, thick with tension. For a week and a half, the Hong Kong district of Mong Kok has been home to the city’s scrappiest pro-democracy protests, and it remains a flashpoint for further clashes among protesters, police and gangs. Prices are posted in Hong Kong Dollars inside the work apartment of sex worker "Miss F," in Sham Shui Po, on the edge of Mong Kok in Hong Kong, China on Oct.