Humor: 5 year old variety versus 3 year old variety

me: "Sam, did you wash your hands?"

Sam: "Yes."

me: "With Soap?"

Sam: "Here's what I did, Mommy. I washed my hands with soap for thirty seconds."

me: "Ok."

Sam: "And you know what I heard? I heard the germs calling for their mommies."

me: [Laugh]

Sam: [Laughs]

Lily: [wanting to have us laugh at her, too.] "I washed my hands, too, Mommy."

me: "Awesome."

Lily: "And when *I* washed my hands, the germs turned to... BUTTS."

me: [Laugh, again. Hey, butts are always funny.]