Hrm. Well, I don't know what the class DID cover, but never let it be said that I let lack of research stand in the way of offering (helpful?) opinions! How about:

What do you do when a boss and worker *really* can't communicate?
Is there any sector of work or workers that really can't, feasibly, be unionized? (history tells us that there have even been military unions, before)
What role do work songs and protest songs hold in labor/management relationships?