That's an interesting experience. I also had him as a professor a while back and he was awful. He was always looking at his phone or computer especially during

That's an interesting experience. I also had him as a professor a while back and he was awful. He was always looking at his phone or computer especially during project presentations and completely ignoring what anyone said. He also didn't seem to know much course material in general. What I remember most is his obsession with Emacs. There was one time that I was grateful though, I had to buy a few of his books and one of them had a defect from the printer, so he helped me get a new copy from the publisher for free.