During the years I taught English, as an adjunct, I used to stand in front of a white board, in a classroom, and talk about whatever novel or short story the students had been assigned, and ask them questions about the same, and write things on the board in blue or green or black marker, and afterwards, when the hour was complete, and the students were filing out the door, use a dry eraser to clear the board of all that I’d written on it. And then, for a minute or two, I’d be alone in the classroom, as I gathered my things into my satchel and made sure that nobody had left anything in the room by mistake, that the room itself didn’t look too disorderly, and that chairs were more or less pushed back to where they belonged, at their respective tables. There was always a clock on a wall somewhere in the room, and I’d glance at it as I was leaving. And then I’d go out into the hallway, and either leave the campus or wait nearby to teach another class.