Dance Dance Revolution versus library fines

A hip librarian is using Dance Dance Revolution to settle disputes among patrons and to adjust the fines they pay:

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.

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.