'Urgent need for 'proper education': Semen terror on a female teacher's tumbler, followed by urine terror two months later [That Is Unknown]

*This content was translated by AI.

SBS public affairs program "That Is Unknown" (hereinafter "TIU") explores the current state of proper education in 2026.

The the 11th broadcast of SBS's "TIU," episode 1495, will feature the segment "Proper Education and a Time Bomb: Our Schools Today."

The production team highlights a shocking incident experienced by a teacher working at an elementary school in Jeju in April this year. At that time, when Teacher Jeong So-yoon (pseudonym) opened a tumbler she had thoroughly cleaned the previous day to get drinking water, she found an unusual substance inside. It was a sticky, foul-smelling liquid. Teacher Jeong recalled, "I couldn't believe it at first, but who could have done such a thing? From that moment on, I can't even remember how I conducted my classes because I was so afraid."

Forensic analysis revealed the mysterious liquid to be surprisingly male semen. The teacher took sick leave due to anxiety symptoms, and two months later, when her classroom was empty during a substitute teacher's class, someone broke in again and left traces on the teacher's chair. This time, it was urine.

Subsequent investigation revealed that the perpetrator of these two bizarre acts was a male first-year high school student from a nearby school. The student claimed he had entered the elementary school because he urgently needed to use the restroom and denied any intent. Since the perpetrator is a minor under 16, his name, face, and true motives remain unknown. What is the identity of this offender?

Schools are now on the brink of crisis due not only to such bodily fluid terrorism but also to incidents involving bomb threats, weapon attacks, and assaults on teachers. Teachers express anxiety over what they describe as a ticking time bomb that could explode at any moment. Some teachers, who have been reported for child abuse by parents and trapped in endless lawsuits, finally appeared before the cameras.

The program also covers an incident involving a middle school teacher in Gyeongnam Province last year who was sued on charges of child abuse. A parent claimed that the teacher punished a child during extreme heat, pulled their ear, and dragged them all the way to the second-floor faculty room, presenting witness testimony and CCTV evidence as proof. What is the truth behind this case, where the teacher was sued again in April this year on charges including assault and insult?

Other parents who sued teachers over alleged improper instructions or corporal punishment also appeared for interviews. Parents of children involved in issues such as sexual harassment or assault also expressed their grievances, claiming that the teachers' disciplinary actions or responses were themselves problematic. With an average of 700 annual reports of child abuse filed by parents, is this a case of hidden teacher misconduct, or merely an emotional battle waged by parents on behalf of their children?

Episode 1495 of "TIU" will be broadcast at 11:10 p.m. on the 11th.

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*This content was translated by AI.