T1 once said to me "I go to supervision and just sit there thinking 'yeah, yeah' because I know it all already.". The arrogance in that statement was stupifying and I lost all confidence in his ability to use supervision effectively. I know he didn't take his feelings towards me to supervision.
Last session I told T (who is a big advocate of supervision) what T1 had said about supervision, and I could tell T was shocked and a bit p-ed off about it.