This happen a few years ago, but I just love this story. It's a conversation between me and my daughter when she tried to be sneaky about putting away her toys.

Mommy: Natalie, please pick up your toys.

Natalie: I did

Mommy: Natalie you know that Hashem not only hears what you say, but he can see everything you do. So maybe you should go back and put away the rest of your toys.

Natalie thinks about this and walks away. A few moments later ...

Natalie: Mommy, Hashem is sleeping.