R taught me that negative feelings are not always bad and I think the hallmark of a real T is accepting the good with the bad. I used to never show negative emotions even with my best friends and he remarked once at the start that when I had the opportunity to tell him that I was angry with him I didn't.
He always handled it well and he let me rage and get it all out.I didn't stamp around his office or throw things around or raise my voice, but I was mean. I have told him that i hated him, and sent him angry emails. And done all of the last three things because I felt safe enough to do so.