I am used to that from the old days when I taught classes after college – sporting instructors are terribly high-maintenance, and spinning instructors are no exception. So, to the drama of bikes that are constantly breaking in really bad ways at the Gold's Gym on Brannan, we have a collective of instructors that constantly bad-mouth each other when out of earshot.
I got an inkling of that last year, when JP, one of the instructors, decided I should take over one of his classes because he had to go on a long trip and couldn't find enough subs. I thought it would be a neat experience, and I got ready.
The day, a Saturday, came, I had about 8 people in class, and we all had a good time. I goofed badly a few times, for instance not realizing that the "Double Left" goes with a fast song, not with a slow one, but all in all the class supported me. They were actually the sweetest, going all the way with me.