I was caught in a rainstorm, along with several 10s of people. We all crowded in under the same small bits of shelter. And everyone tried so hard to preserve everyone else's sense of space and privacy. Which was considerate but ultimately very odd as no one talked or took the opportunity to be an impromptu community. Everyone pretended to be in their own worlds. Because of a sense of politeness? A sense of distaste for strangers? A fear of being thought uninteresting?
It is a very lonely world somedays.