That's a pretty cold way to end what is usually a deeply personal and physically demanding experience, but I can see how it might appeal to someone plays very hard and doesn't want or need a pleasant goodbye. At the end of a good session, I am usually both emotionally and physically exhausted and need a few minutes just to recover from subspace and get my bearings. Fortunately the Dommes I have sessioned with have recognized this and have been understanding and generous in allowing me some time to get myself together. After my last session, with MVC, it actually was difficult for me just to put my clothes back on because I was so deep in subspace when the session ended. Fortunately, she thought it was funny and insisted I slow down and take my time.
I have also had the pleasure of taking a Domme out for a drink and or a bite to eat after a session and that was always the very best way to call it a day.
