May I ask how you were able to have that difficult conversation with work? Is it focusing on keeping your power over your responses? How did you practice? Sounds very useful not just in dealing with WAS but in work and in life in general.
I was out of town to give a speech and one of the other presenters had a good technique that I will use next time. Before you give a talk or enter into a difficult conversation, he advised: stamp your feet a number of times. This will ground you. A physical proof of your stability. I'm going to try it.