You bring up good points, but how is wanting your therapist to get your permission to share intimate details of your life related at all to this concept?
make my therapist do back flips to prove their undying devotion
It is a simple matter of asking for permission to share details of someone else's life.
(in this particular case it was someone specifically revealing their patients info, and I also get and definitely connect with the possibility she made the joke to cover up her own embarrasment)
Part of the trust comes from knowing that your info is in your control. YOU may feel fine with that info being out there, but your life isn't the same as someone else's.
And yes, my therapist has mentioned that sometimes he asks
(he is in a partnership [business] with another therapist, who may be a doc, but idk) for second opinions about my stuff, but as you mentioned, takes away identifying factors. But the point is, he came out and asked me if I was ok with that at the beginning.
I'm saying, mostly from my own experience
(for two years I was treated for bipolar, which I do NOT have, and actually don't show very many symptoms of, while having PTSD and parent-child relation issues and ODD on my axis 1, and BPT(kid version) on my axis 2, I was in 2 short-term units, and 3 long-term units, all with doctors, therapists, and MHWs discussing my case. Those many teams of Professionals never talked about the abuse, they never did more than ask whether I was having suicidal ideations, and how I was feeling, well one did, my favorite therapist, but that was ONE out of TEAMS) {I put this here to point out the fact that this is an uncertain field, they don't have nearly as much to base their ideas on as the physical field does} that just because they are professionals doesn't mean that they are going to have THE way to change. Especially if you are afraid to tell them something because you don't know how much info they divulge.
(I can't speak for anyone else, but I know I have stuff I don't want anyone else knowing)
Which is why you need to be able to trust them. Which is why they need to respect the rules of confidentiality and YOUR trust, and ask for permission to share YOUR info. This truly is not unreasonable, especially if they keep notes, they can just write it down.
So while taking the somewhat hands-off approach feels safe for YOU, this does not mean it is necessarily safe or helpful for someone else. Especially if this is say, their first therapist, or the off chance they were the victim of one of those few bad therapists.
In hospitals, you sign release of information forms before they go to someone else. In mental health hospitals, before you go to the physical doctor, you sign a release. In finding a new psychiatrist, you sign a release. In transferring to a different mental health hospital, you sign a release. Or your guardian. This is STANDARD.
In Alaska, it is LAW. In Alaska, it is LAW that therapists do NOT release ANYTHING discussed in therapy, with the EXCEPTION of possible danger to you or others, and ONLY to the AUTHORITIES, without the patient's EXPRESS permission. It is LAW.
P.S. I mention Alaska law specifically because I have never lived/been treated out of state except for in San Antonio and Idaho Falls. (Had to sign releases there too)