Youngest Son (3) has learned his first Word We Wish He Wouldn't Use: "stupid." Husby and I have told him that he may use it in his room and the bathroom as much as he wants, but it is not acceptable to use anywhere else in the house, or out in public, and we do not use it to describe people.
So the other day, while driving down the road, Youngest Son uses it again and Oldest Son (5) calls him on it.
Oldest Son: Eema! (Hebrew for Mom) [YS] just said stupid again.
Me: I heard. [YS], where can you use that word?
Youngest Son: In my room. Or the bathroom.
Oldest Son: Then how come you said it in the van?
Youngest Son: Because I have a mouth.