I used to go for a drink in the Watering Hole bar on the mezzanine level of the Sheraton Hotel.
There are usually a good number of Chinese prostitutes there, but I have never seen them doing any business. The place is instead full of guys who seem to like the company (and feel) of other guys better. I find such things in public to be quite disgusting ... but in a hotel swimming pool rather than the bar, well its just unaccceptable...to me at least.