It bothers me a lot when people wrong on the left side of the sidewalk or hallway or when they open the left hand door of an entry/exit instead of the right. when the left hand door of our office was broken for a week awhile back it was like "who cares" as I cruised into the office each morning. but, when exiting the building, it was the right hand door and I had to use the door on the left. very troubling.