Situation: I am leaning on the counter waiting for my dinner to be ready in the microwave behind me.
Alternative situations: I am throwing paper balls into the garbage in front of me near the wall and I just realized I was running late for home after seeing the time on the clock on the wall ahead of me. Waiting for the food behind me to heat, I am taking some paper balls from a box in my four o'clock direction and throwing them into the thrash can in front of me.
Question: Is the number of shelves in this room if or even?