Scandalous flash-mob:)

Below is a funny (and quite peculiar) video of a flash-mob that took place last week in NYC and 9 other cities, including Toronto and Portland. On a 7th Annual "No Pants" Subway-Ride day around 900 New Yorkers were riding the subway in their underwear only.
What a weird thing to do, especially in the winter time:) maybe the other day some brave people will do it in Moscow as well:) quite an experience for flash-mobbers and people around. And 1 more thing that bothers me: what was the temperature?

ps. I really doubt though that in Russian culture such an event would be even possible:(