There was a nice young woman student in my large, general-ed astronomy class. She had a boyfriend who, the couple times I saw him, talked to her in a way that struck me as abrupt and not very respectful. It wasn’t yelling, but only because it wasn’t loud. Early in the semester, he disappeared from class, except for exams. I don’t require attendance, and she may have been taking notes, turning in homework, and collecting graded homework for him.
One day, she came to class with a black eye. She also had her arm in a sling. It was on the same side as the black eye, the kind of injury one might get from warding off a blow.
I said and did nothing, thinking it was none of my business, since I had no proof of wrongdoing by anyone. Did I do the right thing?
Another time, I had a physics grad student who was a real dunderhead. He squandered a prime scientific opportunity for himself, came close to doing the same for me, came close to wrecking the observatory, and consistently turned in work that was clearly the least he could get by with, probably because it was the best his limited intellect could do.
I hear he’s been hired by the local community college as an instructor of introductory physics. Ordinarily I like the local community college, since they usually do fine work. I’m dismayed this time, though, since I'll get his students in my upper-level physics classes. Even worse, there’s a much smarter, more knowledgeable, and more effective instructor of intro physics in the area who I know is looking for work.
So far, I have said and done nothing, thinking it’s none of my business, since who the local community college hires is up to them. Am I doing the right thing?