College bully suffering

Sophia has been bullying the other girls, and boys, in her class for ever and a day. Stealing their dinner cash, name-calling, ripping their text books, throwing their college bags in the bins... you name it she has done it. She really is a nasty bully. But her classmates have ganged up together to teach her a lesson. They've cuffed her to a bench in a busy park and stuffed a ball gag in her mouth to shut her filthy mouth up. She struggles to escape but it is just no use!