I'd pretty much exhausted all of my usual strategies for discipline when I came to my husband and said, "I'm just out of ideas for how to handle this. What should I do?"
(I was listening intently for a magic bullet technique that I hadn't thought of yet. I REALLY wanted to hear a 1-2-3 solution to the complex heart attitudes of our pre-schooler.)
"Well, have you tried praying with him? Just stay calm, correct him, and ask God to help. Let him see that you are both dependent on the Lord for a heart change."