Parental Responsibility  In most cases, in which the child is not subject to some sort of constitutional problem (genetic condition or otherwise), the disruptive behaviour of a child is a reflection of in adequate parental intervention over time. A normal child under normal circumstances should be expected to conform to behavioural expectations, and the failure to do so represents a partial inadequate job by the parents.  The result is a cost that is transmitted to society. Children that are disruptive in school or in society via the criminal justice system cost the system extra money either in school resources and time or judicial-police resources as well as in the more obvious costs such as fixing vandalism and graffiti. [1] Even worse; if a student drops out as a result of his discipline problems the cost to society has been estimated as $232,000-388,000. [2] Given that the parent is in part to blame for failing to control the child’s behaviour, in the time during which the parent is the primary custodian of the child, it is fair to pass on a measure of this cost to the parent.  [1] Batten, George, ‘The Main Cause of School Budget Problems is School Discipline’, School Discipline Made Easy,   [2] Hymel, Shelley, and Henderson, Natalie Rocke, ‘Helping Students who are Experiencing Persistent and/or Serious Discipline Problems to Succeed in School: The State of the Evidence’, Ontario Ministry of Education Research Symposium, 18-20 January 2006,