The thing about massage parlous is that they all psychologically try to do each other over anyway.
You get the young fittie who offers "extras" at a good rate and pisses off the other girls
The middle aged milf who has her regulars...but too see her most guys would have to double up on the beer googles.
The eastern European double or trio that will only talk to each other, and have that disdainful "let me get back to facebook look"
and a few other types.
Eventually if the boss doesn't keep a tight lid they'll hurt each others feelings more than you ever could.
HMD