For the seventh year in a row, hundreds of strangers will drop trow on the subway this Saturday, and The Observer will be there to watch (and participate, as per the organizer's instructions). Last year Improv Everywhere, a 70-person performance troupe whose stated mission is to “cause chaos and joy in public places," assembled over 300 people for “No Pants 2k7," and founder Charlie Todd is looking forward to another big turnout this year--600 Facebook members have already signed up.

We chatted with Mr. Todd on the eve of “No Pants 2k8” about what motivates a bunch of strangers to ride the subway in their skivvies.  read more »