This was the first (and last) interview with a pastoral counselor; he got very upset and accused me of "not looking at him" -- which was true, but it made me feel even worse than I already did. Although I did not go back, I did feel that he had made a valid judgement, he was right and I was wrong, and that I was a bad person for not being able to look people in the eye -- I already knew I was a bad person.
I don't know if this was the worst, though. I can think of quite a few others...