Aadrina Salean Smith, a 24-year-old substitute P.E. teacher, was arrested Monday after allegedly encouraging five children to beat up another student as she watched nearby. The incident occurred on Aug. 23 during a gym class in which Smith was subbing for another full-time teacher at North Caddo Elementary Middle School in Vivian, Louisiana . Caddo Youth Services Division alleges that Smith offered to pay five different students five dollars each to tackle their classmate.