That's a good addition to what I said above. As a teacher, I'd be absolutely delighted to help students choose between classes, even if my classes weren't in th

That's a good addition to what I said above. As a teacher, I'd be absolutely delighted to help students choose between classes, even if my classes weren't in the running. It's the, "I spent hours preparing this lecture, and now you are walking out in the middle of it," that I don't like.