Sabotage in School Bottles: Magnets, Sleep Aids Found

Recent incidents across Japan have exposed a disturbing trend of foreign substances being placed in school children's water bottles. In June 2026, magnets were discovered in students' bottles in Hyogo Prefecture, linked to classroom supplies. Earlier, in February 2026, a Tokyo student noticed a chlorine-like smell from their bottle, and in September 2025, two students attempted to put sleep aid medication into another's bottle.

These events, occurring in various regions including Kyushu and Tokyo, underscore inadequate water bottle management in schools. As a response, institutions are revising storage rules, moving bottles to supervised areas, and reinforcing adult monitoring. Educational efforts are also being intensified to instill understanding about the unacceptability of tampering with others' belongings.

While no health damage was reported in these cases, the potential for severe health issues if substances were ingested is a significant concern. The legal implications for adults involved in similar actions were also highlighted, with arrests made for property damage. Even prank-like acts by children, who may not be criminally liable, are viewed seriously and necessitate protective guidance.