through the magic of Facebook, I have discovered that a friend from youth orchestras is Kid_A's cousin, and now that a friend from school appears to be friends with Sarkyfox. This is weird, and makes the world seem very tiny!
So, I reckon there are more of these coincidences out there, some known and more to be discovered. How far separated are you from other DiSers? Is there anyone you have suspicions may know your friends? Try and find out! Somehow!