If I was taking a class I would be tempted to make jokes with my T... it would be completely distracting, neither of us would learn anything, then we would spend all session talking about our classmates. We go on enough tangents in therapy as it is.

I don't think it would be outright unethical, but it might not be in your best interest. I'm not sure. Maybe you should ask her and report back. I'd be interested in the response.