Spanking children as a means of discipline.

[majordave]

In the United States of America, depending on the state in which you live, if you spank your child they can call social services and have you brought to court for child abuse and battery. There are some states in which it's still legal, but that's changing quickly.

Even most people who agree with corporal punishment (ie., spanking) believe it's only effective up to a certain age, usually around 9-10. After that, it's abuse.