Two people are either together or really good friends, close etc. They pick a future date way in the future and a place "2pm on 1st October 2009 outside Euston Station" or whatever, they talk about it often and vow that no matter what if they're no longer in contact if they've fallen out if they're both married to other parties no matter WHAT they will both be there to greet each other. Does anyone know anyone who actually stuck to it?? I'd love to hear anyone who did despite the outcome.