Board Thread:Questions and Answers/@comment-28126679-20160404060650/@comment-27541663-20160425015819

If it's 1980s mode or the teachers aren't trained, or aren't just naturally strong, the delinquents win

If the teacher is skilled, naturally strong, and/or trained, the teacher will win. In general, though, most teachers are either strong, skilled, or trained, so teacher probably