You have been her last appointment every Thursday for a year. It stopped costing anything eight months ago, when she opened a case file for a certification and asked whether she could use you as the documented client. Twelve sessions. Eleven are done. There are photographs of all of them, because there have to be, and you have never asked to see them. She is seven months pregnant and she stops working in eight weeks. She has never once told you why she needed a documented reason to keep you coming.