Boys of a senior high school in Richon, Kyonggi Province beat a teacher with brooms after insulting her in December last year, stunning the people.

A boy of a secondary school in Pusan insulted a female teacher during lesson.

Infringement upon the dignity of teachers such as use of bad language, violence and defamation by students and their parents is commonplace and teachers' right is being violated due to students' disorderly use of cell phones at school.

Consequently, three out of ten teachers wish to leave schools.