to update:-
I raised it, she was very apologetic, and admitted that this an ongoing weakness her supervisor has been pushing her to improve. She said that after last week she had been full of resolution to change, but it had got away from her again, she'd been late for me and she wasn't even sure if the same woman was booked in immediately after me this week. (I'm a bit puzzled about that, as I'm her first client of the day, and the room was ready and she had clearly prepared. )
I've been feeling ill for some time (earache) so suggested the answer was to finish promptly, which would allow me to go home and lay down, and her to check her diary.
We talked about the timekeeping problems I had with T2, and about her dishonesty around it, which became a huge problem when I challenged it. I did say that if the gate was locked I'd go home, because I don't need to be reminded that it even exists, and she accepted that. I'm happy that we have resolved this with honesty, and pretty confident it won't get in the way. There was another issue I wanted to clarify, based on a passing comment that I'd been brooding on. That was also cleared up, and then we got on with some real work. It is such a relief to be working with someone vwho is direct and honest, and allows me to be the same
I will need to watch myself, to check that I don't take on an area of responsibility that isn't mine, but I do genuinely think that it won't be a problem. I doubt she is going to become perfect, but I'm happy that the positives far outweigh the negatives.