Nerd News: An Extreme Case of "That Guy"

If you've ever taught, you know that just about every class has a student who is "That Guy."  Usually this is no more than a persistent classroom annoyance, but here is a troubling case of "That Guy" -- or rather, two of them -- and a professor who resigned.  Listen, no instructor should have to put up with deliberately disruptive, hostile behavior from students.  Students, if you have a problem with your professor or your class, you do NOT disrupt the class.  You go through accepted grievance-filing channels in the administration from the chair of that professor's department through the dean if necessary.