William and Abby chat together all the time while riding in the car. Yesterday, John and I heard the following conversation...
William: Abby, it's getting dark outside. Say, "Yes, Abby." (They have always been instructed to say "Yes, Mom" when I ask them to do something, etc. so William now thinks that applies to him as well.)
Abby: Yes Abby.
William: No, say "Yes, Abby."
Abby, laughing: Yes.
William: When it gets dark it means the sun is going down. At night the sun drops into the ocean and it goes out. That's why it's dark. Say, "Yes, Abby."
Hmmm...might be time to pull out that outdated globe, at least for illustration purposes.