This happens to me all the time. I’ll be walking down the hall and someone will brush by me or get within an inch of me, and have instantly committed mortal sin. They have no resolve but to exclaim, “Sorry,” while I’m thinking, “How did you ever walk down a hall before you came here?” Is it this way in extremely crowded cities, like New Delhi or Tokyo? Is there a constant chorus of pardons and whoopsies? Maybe I just have an anti-personal space barrier that slides through other peoples barriers like…something that goes through something really fast.