No Pants Day started on the Red Line, where waves of pantsless people got on and off the T at various stations. (Chris Stale)
Bostonist didn't make it out in person yesterday for the 2009 installment of Boston's annual pantsless subway ride, but our lovely reader Chris Andrews has provided us with a stack of photos from the event. The event, known across the country as No Pants Day, is sponsored locally by the Boston Society of Spontaneity.
We can only hope that somebody hosed down the Red Line after it was over.
Contact the author of this article or email tips@bostonist.com with further questions, comments or tips.

