I only know of it happening once, maybe it has happened since then, but if so, it hasn't affected me.

The time I noticed, I asked him why he didn't believe me any time I'd come in and he'd asked whether I was drunk or high on anything. I'd say no, and he'd ask again, like right afterwards. It didn't seem at all like he believed what I said, even though I never came to a session intoxicated.

After two or three times, I got upset by it, since I felt like he didn't believe what I said. So I asked him, and he admitted that it was the wrong thing to do. He said that he felt "too much like a dad". I never heard about it again, and he never did anything like that again. So I guess he handled it well.