Luke: "Mommy, what's my favorite color?"
Mommy: "I don't know. You tell me. What's your favorite color?"
Luke: "Red."
Mommy: "Oh! That's a great color. My favorite color is blue."
Luke: "My favorite color is blue, too. Daddy, you should pick black."
Daddy: "Oh, yes. I like that color, too."
Luke: "But who picked it?"