The Girl: "Mommy, who did you say your brother is?"
Me: "Uncle Brad."
The Girl: "Oh. And why don't you live with him now?"
Hubby: "Honey, big people don't live with their mommies and daddies and brothers, they live with their own families."
The Girl: "But Daddy, I won't have any money for a house of my own."
Hubby: "I promise you can live with us until you are ready for a house and a family of your own."
The Girl, after thinking for a minute: "Daddy, I think you should hide some money for me and I'll come get it when I'm ready for my own house."
Hubby, laughing: "Okay, I'll hide away some money, just for you."