Agent D

Andrew: "Mommy, maybe when Daisy isn't a puppy anymore, she'll become a secret agent."

Mommy: "Daisy's a dog."

Andrew: "But Perry the Platypus is a secret agent. Daisy could be Agent D. And we'll have to teach her lots of tricks so she can defeat the evil doctor."

Mommy: "Will she have a secret agent hat?"

Andrew: "Momm-eeeeeee. (sigh). If she's a secret agent WE WON'T see her hat. IT WILL BE A SECRET."