I doubt a teacher would have charges because I assume there must be mens rea for this to be a crime. This is not a "haven't they suffered enough" issue. They a

I doubt a teacher would have charges because I assume there must be mens rea for this to be a crime. This is not a "haven't they suffered enough" issue. They are idiots paying too much at an actual grocery for what they thought is magic water without rocket fuel in it. They're not intentionally giving bleach to their child or anything like that. The culpability is with the manufacturer.