Sounds like a very cool class. Several shops offer classes.
I like mixing bikes and politics. Some how burning energy on a bike and having to pause while cranking up a hill keeps taboo subjects on a more even, open minded keel.

Now politics during repairs, particularly when the derailleur cable is just a little short, drop a screw on the dirty garage floor, round off my favorite allen wrench then lose my place in either Zinn, may not be the best time to add fuel to the fire.