I had a professor in undergrad that gave punishment assignments if you didn't attend his class. His was THE MOST boring of all of the classes I took. I was physically present for all but the second to last class. My DGF died and I thought it better to be at his wake with my family than in his class. In the prof's mind, there was no reason for anyone to ever miss his class. He didn't want to hear my "excuse", but I talked over him and told him where I was. His response was, "oh."
My BFF's Dad passed away the day before her pathology final in med school. Her prof didn't bat an eye and the only thing that changed was that none of her classmates had their grades released until she took the test, too.
FF to my MBA work. I had a prof that gave a ridiculous take home mid-term. It had 10 questions on it and it took me 5-hours to answer the first 5, and I would have had to go to the library, pre-internet, to research the remaining 5 questions. I went to his office and told him how absurd his test was and after we talked, it turned out that my advisor put me in the wrong class. I had to finish the class in order for my work to pay for it, so he gave me a project to do instead. I completed that, through the Small Business Development Center and I gave both him, under his door, and the SBDC a copy of the final work.
He had a private office and claimed that I never finished it. I was livid, but expected it. That's why I also gave a copy to the SBDC. That was able to validate that I had handed it in on schedule. I wrote a letter to the president of the school, detailing everything and the professor was no longer working for the school the next semester. I don't have any idea if it had anything to do with me. It wasn't my intention to get him fired... just a little coaching on running a classroom... and to get my failing grade back to what it should have been in the first place.
Some professors think that the PhD gives them rights and privileges above us average folks. Others understand life and that things that come up that weren't expected and they work with us instead of punishing us for things outside of our control.