CompSci 2000-2006 (I got mono one fall and missed some prereqs only offered in fall for classes only offered in spring). At least 2 teachers no one could understand what they said. Turns out one was on tenure track and - having a grad school TA gf and her best friend, our row house mate, was also a double grad - we had a lot of inside rumor mill knowledge with the professors who we would socialize, even sailing on the catamaran of one and going to parties at their places, and my gf worked with the daughter of the owner of the local radio station so we had those connections, too, so we came to know that it seemed he was having an affair with the new department head. The previous department head was perhaps my favorite teacher and he was so disillusioned with the department that he transfered to the mathematics department to teach mathematical computing. Of course I took his classes as my elective.

Anyway, this has been happeneing in compsci for at least 25 years.

Oh, and my school no longer exists: it was absorbed into a group of 6 other colleges in the area so all of the campuses for all 6 are now part of the same system.