For me, it's probably this: about 30 years ago I woke up very early, went into my office, and got a local newspaper--none of which I regularly or really ever did--and read that there was a funeral that morning for someone I knew, but didn't know well (who committed suicide). This was a fairly young person.
So I went to the funeral, which was in a few hours from when I learned of it, and maybe an hour drive, and saw a number of people I knew. But I wound up going to that funeral because of a series of unlikely or random events.