The following is a purely hypothetical scenario. I don't want to hear any "it depends" or "this wouldn't happen in real life." That defeats the purpose of a hypothetical. Let's say that there are two parents and a child [u]in his/her teens.[/u]One of the parents has a prescription medication. They keep it in their medicine cabinet. One day, the kid opens the medicine cabinet and takes the medication. This causes health problems for the child and generally messes them up. Who is tho blame for the child's problems in this scenario? Edit: Assume that before the incident, the child is perfectly healthy, both physically and mentally. The parents have told the child not to take the medication, and the child understood. The child knew what the medication was prior to taking it. The medication is not necessary to the survival of the parent taking it, but it eases the symptoms of his/her condition.