Boundaries: Step Four: Your Family and other Animals. Jennie Miller

Overstepper home, thanks to the invigorating effect of hormones. A son who has always been physically punished may suddenly fight back. A daughter might run away for real. This is the time when you first begin to feel separate and different, naturally yearning towards more independence and developing your own opinions. But that inevitably leads to more clashes as the Oversteppers resent being challenged.