I always tell them I am allergy to the disposable underwear material, so ended up ding dong bell, then request to have more massage near groin, said you have tired legs after workout, and also can drop hint to them saying you often visiting HC and rarely pop by clean spa. My few encounters tell me that if they do not mind you are not wearing anything in first place, then you have increased your chance of having "special", but likely a quick HJ and close your eyes with towel to enjoy (damm shiok), tip them $10 to $20 even your special request being rejected, keep going back for the same gal, she will give way to you soon.. Try to target PRC & indonesian, as they felt the special incentive is a huge bonus as compared to their regular pay, but you have to ensure them you would not spread such matter widely so that they will be continue to provide such service for u, Happy Exploring, it really fun and exciting, better than standard HC procedure. Cheong...Cheong..Cheong..