With particular emphasis on the power of praise - the basis of his acclaimed 6:1 strategy - and planning in advance for behaviour hotspots, every parent can break the miserable pattern of constant confrontation and repetitive nagging.
With the insights and methods found in Divas and Door Slammers – including a handy Troubleshooting Guide that looks at such issues as under-age drinking, sex, drugs and problems at school – every household with teenagers can quickly transform from havoc to harmony.