The Girlie: "Grwaaaaaa!" (=screams)
The Man: "You're shouting at me because I shouted at you. You don't like being shouted at, do you."
The Girlie: "No..."
The Man: "Well how about we make a deal: I won't shout at you if you promise to do what I say the first time I say it."
The Girlie looks at him, pondering. Then replies confidently: "I've got hairs in my ears!"
The Man looks at her, then at me, and grins.
It's such a pleasure, having conversations with two-year-olds.