For example, if a teen has overdue books, she will dance-off against the person, and if the teen wins, the librarian will waive the fines.Link
In addition, when the kids get into squabbles amongst themselves, she tells them to take it to the mat and dance off against each other.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.