Back in early 90's when internet was getting popular and AOL was the internet, I was surfing a chat room and ended up talking to a neighbor that lived one block away from me. Now consider how big the world is, and it ended up they lived down the block!
Another time I was at work, and a nice lady who worked in the restuarant told me her son was also into flying, when I finally met him, it ended up we surfed the same website.(jetcareers) And the previous night(the day before I met him), I had responded to one of his comments.
That was about 3 years ago, right Iain?