The underlying medical issue is most likely "Flaming Liberalism"

No one was hurt and no property was damaged, therefore I see no need for charges. However, this professor is clearly unstable and not fit to teach. His ideas can only poison our children’s minds. I hope Michigan State University does the right thing! Story quote, “… while shouting about religion and other unintelligible topics.” Perhaps Michelle Castillo is merely illiterate and didn’t really mean to imply that religion is an unintelligible topic.

Uh, charged? You don't find his actions at all, well, 'odd' and that there may be some sort of underlying medical issues to such a public display of, for lack of a more tactful word, craziness?

If a janitor had done the same thing,he most certainly would have been charged. Union membership and tenure make this guy above the law.