Situation: I am getting a drink of water standing in left of the windows and a a picture in the corner of the room.
Alternative situations: I am dispensing water from the watercooler located on the top right corner of the room. I am filling my cup with water in the water cooler in front of me as I look out the window to my left in front.
Question: If I head backwards, which other direction do I have to head to get to the bannister to go upstairs?