That's absolutely hilarious, especially considering that prostitution absolutely thrives
in China and is somewhat open. China is quickly becoming a week-end sex destination for Korean and Japanese businessmen because of it's close proximity, the local authorities' willingness to "look the other way" (as they see it as a great source of hard cash for the local economy), and the cheap prices, especially compared to their home countries.
This is also a reason why Korea has a growing AIDS problem (contrary to the Government's constant denial). With Korean businessmen going back and forth on sex tours and them not believing in protection, it’s easy to contract the disease – which is rampant in China -- and then spread back home.