A southwest Philadelphia school is giving its eight graders $100 at graduation if no one fights for the entire school year.

Yahoo reports that if any of the school’s 37 students mess up, they will all lose the cash.

Mitchell Elementary School Principal Stephanie Andrewlevich calls the incentive “managing behavior.”

The move has both drawn cheers and criticism. But according to the educator, she says the incentive is working.

This year, just eight percent of the students at the school have been suspended, down 17 percent from the previous year.

The total, if every students doesn’t fight for the whole school year, sums up to $3,300. As for who will foot the bill, Andrewlevich says she will do so unless a donor steps up to the plate.