At the start of my journey to my EE degree I took Calc 2 during summer term. No AC in the room and the instructor walks in. He was a camel jockey wearing sandals, baggy tan cargo shorts, and a white wife beater t-shirt. He mumbled something, turned to the chalk board, then started to try to teach us centers of mass while not really speaking English and ignoring our questions.
I was able to transfer to another class but it did make my daily class schedule harder.
Damn! You had that guy, too???
His chalkboard scribbling went up at a furious rate and was illegible. His spoken language occasionally had an utterance that vaguely sounded like an English word. Absolutely the worst two classes during my ME undergraduate years.