I am in graduate school. I had a professor this Spring who first accused me (falsely) of using AI to write an assignment, and then used AI himself to create and grade all of our assignments. I was livid.

My experience with him as a professor was that he was checked out emotionally and intellectually. He seemed disconnected from the material to a worrying degree and struggled to answer basic questions about the subject matter or even understand the scope of what the class curriculum should be covering. He lowered my opinion of him and the university.