Therapists can be quite vindictive, in my experience. They feel entitled to the presumption that they only ever operate from the moral high ground. . . But therapists can be a thin-skinned lot. They're supposed to be trained to avoid counter-transference, but they can take advantage of the client's not being trained to recognize that. They also can take advantage of there not being a third party witness to what transpires. This makes for real client vulnerability.