I walked out of my first session with my first therapist. He was spouting some drivel about therapy putting me in touch with emotions I had shut down and closed off and in the course of therapy I would feel anger and rage and pain and sadness. I was like, "No. No I won't." And I left.

He seemed so surprised to see me the next week, and I was perplexed about that. I didn't say I wouldn't do the therapy; I just refused to feel the stuff he was talking about.
I have bolted from my current therapist's office to be sick. At least twice. I returned when my stomach stopped revolting though.