Hi there! I was just reading your post about the no pants thing and I figured you'd be interested in this...the idea was started by a group called Improv Everywhere and I think this was the 10th year they have done this. Here's their website: http://improveverywhere.com/A friend of mine who lives in New York has done this several times, and a few other "flash mob" type things and loves it...although, I'd be freezing if I were to do this!
Haha, I don't think I would be participating myself...but I think it's hilarious! and...weird!I read online that it has been going on on other subway systems for longer (such as New York), but this is just the second annual 'official' event on the Tube. Thanks for pointing out that website. It seems pretty cool. :)