I don't know about the giggly girls, but several years ago the Judo team from Florida International University (males & females) was in California. The head instructor, Nestor Bustillo, was driving the rented van and stopped in a gas station. An upstanding local citizen walked up to the driver's window and attempted to carjack the van. The whole team, except Nestor, came boiling out of the van, pinned him, applied armbars and chokes, and held him for the cops.
I read about it in the newspapers and later asked Nestor about it at a Florida tournament, and he verified that the story was true. Here's a link:
http://chronicle.augusta.com/stories...z_353964.shtml