No Pants Day 2013

FMA0021. London (United Kingdom), 13/01/2013.- People take part in a No Trousers Day 2013 flashmob on the London Underground, in London, Britain, 13 January 2013. The event is organized Improv Everywhere and takes place in many cities across the world. The goal for the participants is to get on public transport dressed in normal winter clothes, but without pants while keeping a straight face. EFE/EPA/FACUNDO ARRIZABALAGA