I read one psychologist's theory that said, "Never strike a child in your anger." When could I strike him? When he is kissing me on my birthday? When he's recuperating from measles? Do I slap the Bible out of his hand on Sunday?

I read one psychologist's theory that said, "Never strike a child in your anger." When could I strike him? When he is kissing me on my birthday? When he's recuperating from measles? Do I slap the Bible out of his hand on Sunday?