I used to fight Verizon over money all day long. I'd call them every time I had a free minute just to jerk them around. But just because they were lying, stealing whores.
Eventually I got over it and paid them 350 bucks just so I'd never have to speak to them again.
I can get where the professor is coming from, but I'd hope his time could be better spent. Like torturing Verizon.