I was wanting to waste time, so I decided to see if I could get back to me from a random person from everyones photos through peoples' contacts through flickr and I did manage it only took me about 25 minutes.

The rule is you can only go forward, which means you click on a new contact each time unless you get to a dead end you can back up until you can choose another contact, to find peoples' contacts click on the profile, but you can go back if you come across a person from earlier but only if it is more than 6 people ago unless you have clicked on all the other contacts.

Tip: if all your contacts are from one country, try & get to the country as earliest as possible.

Hint: If you have come here through degrees of flickr, choose irregulargirl or Girl_with_hairyarms unless you recognise somebody because they have loads of contacts.

I call this waste of time: degrees of flickr.