I'm not entirely sure that this has even occurred to others but it is something I've observed. Yesterday I went to dinner with my Dsis. The restaurant was walking distance but I noticed that while I was walking I was avoiding bumping into people, prams etc... it never occurred to me that others might be trying to do the same - I just thought it is basic instinct to avoid clashing with others. So the two of us decided to experiment and not move out of the way i.e. keep walking, the experiment resulted in me getting bumped into twice on the walk. Is this a thing? Is it a competition?