Well I feel like that your Therapist should never show anger towards you, or get angry with you. I understand that they are human and things happen, but if a Therapist is able to get angry at a client and show it, then they should choose a different profession. I have two different jobs, one of them working with the public, and there are PLENTY of times where I get very angry with customers, BUT I never show that TO the customer. I never let them see my anger, even though they will get angry with me and show it very well. That's something you can't teach, it's called self-control, and a Therapist before ANYONE should have that before they can get the job. As for showing anger or frustration, that's fine, but it needs to be controlled and they need to let you know that it's NOT because of you at all.