I think I figured out how to deal with this. Tne regular waxer “falls ill”. So, they bring in a 300 pound former wrestler. The customer cannot object, however, as the former Otto now identifies as Patricia.
Genius!
Or just find a guy willing to do the service who floats among the waxing establishments as an independent contractor. The trannie can’t complain since he is just arranging for the service, not the specific person who performs it. I guess if a woman is willing to do it, she can be the independent contractor.