A fifth-grade student, Yang A, from a primary school in Cheongju assaulted teacher B. Yang A expressed dissatisfaction with the test paper and verbally abused B the previous day. The next day, when B suggested a retest, Yang A kicked and punched B's head, committing assault. It is known that Yang A has been struggling with emotional problems and has shown verbal abuse and violent behavior towards other teachers and students in the past. The school requested Yang A's parents to administer medication and guidance for hyperactivity, but it was recently found that the parents had arbitrarily stopped medication.
