School started at 7am, or something close to that. In those days I was NOT an early riser. My first class was with David Koch. I sat in the second row, and would just lay my head down and snooze during class.
I aced his course, by the way; some part of my brain was getting the info.

At graduation, before we marched in for the ceremony, Koch looked at me and asked me who I was. I then tipped my head down, and he replied with a straight comment: "Oh, Lynne, it's you!"