Niche Service

This is definitely a niche service that brings up some stiff questions. Does it come with a happy ending? Is there big money to be made? Some body gets the shaft, is it the customer or the technician? Does “keep up the good work” mean something entirely different?
I can hear their radio jingle now. “Call 1 800 weenie scrub/and we’ll leave the filth/in the tub.”