The first time I saw my ex-T she expressed very firm boundaries about the session time. I was to stick to the set session time and had to pay whether I went or not. Looking back this kind of terrified me. Terrified is a strong word, but I think it expresses how I felt, though I wasn't really aware of it at the time. I think you would probably consider this to be a hard boundary and it made me feel powerless - all the power was with her. It made me feel like a child. (With hindsight I never should have started seeing her).