I have a couple. My son was in Scouts when he was younger (now out as an Eagle scout). He met a guy in Scouts, and they became friends. One day, the friend was over at our place, and I was sitting working on our family tree. His friend is an inquisitive sort of guy, so he wanted to know what I was doing. When I told him, he said, "Oh, my aunt does that; we had lots of people who came from Virginia." Since my line also comes from Virginia, I asked him his last name (he and my son hadn't known each other for long); when he told me, it rang a bell. I started looking in my database, and sure enough, there were people with the same surname. Once I started looking, it didn't take long at all to find that this young fellow and my son (and I as well, of course) are cousins! We lived in Colorado at the time; I and my son were both born in Texas, and my son's friend was born in yet another state, and yet by complete chance, we all met.

Truly, it's a smaller world than you think!!