When I was sitting in the dentist's chair the other day, we were reminiscing about the 60s, which was all a mystery to his young nurse. We got to name-drops, and the nurse said something about it was like people talking about 6 degrees of the President.
I told her I could get a lot closer than that: an ex-pupil whose husband Martin (whom I met, so he's the first link, not her) was at Oxford with Bill Clinton. All the nurse could say was, "Did Clinton go to Oxford?" So we explained the Rhodes Scholarship to her.
Later, it occurred to me that, as Clinton and his wife know Obama, that puts me just 3 degrees away:
3 - Me!
2 - Martin
1 - Clinton
0 - Obama
Didn't know I was so well connected!