Situation: Standing in between two tables while facing away from the blackboard closest to the door.
Alternative situations: I stood up to leave the room and am currently between two tables facing two black chairs against a wall. There is a door to my right at about 3oclock. I stand between the tables with my back to the blackboard, rehearsing for a presentation I will give to people in the chairs in front of me.
Question: Is the amount of blackboard behind me odd or even?