Yesterday just as I was about to leave work, something happened to upset me. I won’t go into detail since this is my public ballet blog. The main thing you need to know is that, leaving work, I was rattled, upset, worried and more than a little bit angry. I didn’t want to go to ballet class. The last thing I wanted to do was go to a class to practice making my body light and ethereal, to be graceful, to perform slow, controlled movements or light, bouncing steps. What I wanted to do was go for a long, hard run. On the way home, I blasted T-Pain and Le…