Baangrak has that, hel_l the guy cracked my back and neck so well I now say its better to go there than spend 200baht on a massage.

Isn't it outside the realm of possibilities that some of these guys might use the massages as a diversion to add to their income by having one of them reaching into your back-pocket and helping himself to your wallet

...indeed there is nothing to stop Khun Thai coming into a particular club with a small stainless steel dish, place it by the wash basins and set up "business" doing farang rubs at 20 baht a go.

Such "staff" would not be traceable if he did a runner with a drunk's wallet, lesson don't be drunk?

I've encountered similar "services" when travelling in other Asian countries, all part of the mix that makes Thailand.