I had Dr. Harold Jeskey. Two things defined him. He would talk about studying with the “little lady”, if you were a guy. This was to emphasize the need to study hard. The second thing was his tests. The first page everyone should get, if they studied. Second page was for everyone that studied hard. Third page only he and God knew the answer. Fourth page, only he knew the answer.
I still remember things that he taught us in Organic chemistry.