OK - so, done correctly, I think this love and logic parenting might work!
Wednesday AV's school PTA sponsored a roller skating night. She wanted to go and she had the allowance to pay for it. Wednesdays are pretty busy so we didn't get home until about 6. I made a quick dinner of soup and biscuits while she ran around doing as much of her pre-bed routine as possible.
6:20 soup and biscuits are ready. She decides to get sassy so using the L&L, I say something to the effect that her words are hurting my ears and she can come back to dinner as soon as she's ready to talk nice.
So off to her room she goes. A few minutes later she comes out and announces she's not hungry. "But mom, my tummy is telling me that it doesn't want to eat? Don't you get what that means?!?!?"
So I again try the L&L thing and say OK. It's good to listen to your body. You don't have to eat. I am going to finish my dinner. You do need to know that choosing not to eat dinner does also mean no snacks at roller skating.
She agrees, bounces around the living room while I eat and then were off. At the roller rink she skates every song for almost two hours. She also buys a candy which I thank her for profusely since of course she bought it for me since she can't have snacks.
We get home and she is sooo hungry. "Mom, I'm hungry!" "I'll bet you are! You skated really hard tonight and used lots of energy!" "But mommmmmm!"
A bit later she comes up with a really great statement, "I should have eaten dinner!"