Boy Child: Master of all things obvious, as we walked to the pharmacy: Do you need something at the pharmacy?
Boy Child: Can you tell me what it is?
Me: It's just girl stuff.
Girl Child: It's probably birth control pills.
Boy Child: Girl Child! Mom doesn't take birth control pills! She can't have more children!
Me: That's right. I don't need birth control pills.
Boy Child, after a moment: I'm sorry you can't have any more children mom. But think of this way...you have me and Girl Child. And if you had another baby, you'd have lots of things to pay!
Boy Child: I hear diapers are very expensive!
Girl Child: So do I! I hear that!