Ts are not there to be our punching bags. While there are times our anger may cause us to lash out. We are in T to learn how to control our emotions. To learn how to talk about our feelings when we are angry instead of lashing out. This comes with time. But Ts are not there for us to lash out at. If you were to lash out at a friend, would you apologize? If so, then you should apologize to your T for lashing out at him/her. S/he deserves respect just as you deserve respect.