New Delhi, Feb 09 (ANI): Miley Cyrus has slammed children who are rude to their parents. The former ' Hannah Montana ' star said that sometimes she hears kids with their parents, and just wants to go over and smack them herself. The 21-year-old singer said that kids often taunt their moms about not having the knowledge of using an iPhone or take a pic. Cyrus added that had she behaved that way with her mom when she was a child, she would have been barred from using a phone, computer or TV and that she hates such mean kids.