Six degrees of separation?

Wikipedia has an entry for Six degrees of separation. I am beginning to believe that maybe there is something in this.

Earlier this week I flew into Las Vegas to speak at a conference, and the evening before the conference opened I attended a reception for the sponsoring organization's members. Not many were there, maybe 30 or so -- probably because of the thunderstorms that delayed my flight as well as others.

But in short order, chatting with one of the guys I hadn't known before, I soon learned he's from (and still is near) Lansing -- and that he had an uncle who ran a shop in Midland sometime around the time I lived there! What kind of shop, I've forgotten. Not shoe repair, but something with tools...? The conversation went off in other directions and I was pretty tired by then, so I guess I'll never know.