If you're Happy and You Know it.

I don't know if I'm raising a pleaser or what; but lately all my girl can ask me is if I'm happy. She will get really close to my face and say "You happy, Mommy?" and she will repeat it and scream it until I yell "Yes, I'm Happy!!!!" to which she replies "Then I'm happy too!" and goes along her merry way.
I figured out how to use this to my advantage. When she is doing something I don't care for, I look at her and say "I'm not happy" and then she gets very serious and stops the bad behavior.
If that doesn't work I deny her some cake.
Hey! Whatever it takes is my motto.