The extent of injury inflicted on hospital patients by clinical negligence is a case in point. We do not know what it is. When it happens the consequences are real. Somebody somewhere pays for the injury. Clearly, the victim suffers the injury and pays in that fashion. The family of the victim may pay in care deployed or care costs paid. Or, if the family consists of children of the victim, the children may suffer diminished life opportunities by being deprived of care they would have got from the victim.