While researching various parenting issues, we came across this which was very interesting and may apply to someone you know.
Even the best-behaved children can be difficult and challenging at times. But if your child or teen has a frequent and persistent pattern of anger, irritability, arguing, defiance or vindictiveness toward you and other authority figures, he or she may have oppositional defiant disorder (ODD).
As a parent, you don't have to go it alone in trying to manage a child with ODD. Doctors, counselors and child development experts can help.
Treatment of ODD involves therapy, training to help build positive family interactions and skills to manage behaviors, and possibly medications to treat related mental health conditions.