In the summer of 2015, Katherine Macfarlane was preparing to teach at the University of Idaho’s law school. It was her first teaching job on a tenure track, and she wanted to make sure she had everything she needed. So she submitted a request for a keyboard tray and a few other office items.
Ms. Macfarlane gave the school’s human resources department a note that her doctor had written about four years earlier, describing her decades-long…