Proverbs 29:15 "The rod and reproof give wisdom: but a child left to himself bringeth his mother to shame."
Proverbs 29:17 "Correct thy son, and he shall give thee rest; yea, he shall give delight unto thy soul."
Both these verses should give parents something to think about! There are too many kids left to themselves these days. They yell and scream and run around like little banshees. They aren't taught to behave in public (church, restaurants, etc), let alone at home.
Other verses where the Lord discusses correcting our children...
Proverbs 22:15 "Foolishness is bound in the heart of a child; but the rod of correction shall drive it far from him."
Proverbs 23:13 "Withhold not correction from the child: for if thou beatest him with the rod, he shall not die."