We think, but we're not entirely sure, that Arthur has learned to say more. In sign. Only he's using the sign for 'together.' I know the baby sign book says to be forgiving, but it means our conversations go something like this.
John (holding spoon): Arthur, would you like more (signs 'more') food (signs 'food')?
Arthur: (Repeatedly signs 'together' and opens mouth) ha da!
We also think that he's making distinctions between the two of us by saying "DA-dah!" and "da-DAH!"
On a different note, we are sure that Arthur thinks the vacuum cleaner is a kind of god. He worships the closet where the vacuum cleaner lives, and when it comes out to clean the carpet Arthur goes kind of crazy, crawls all over the room, and squeals with delight.
He also tries to eat the electrical cord.
Arthur also worships the toilet. It's something he really really wants to get close to. We have to make sure the door is always closed.
I guess I'm okay with it, but I'll be really worried if I come out of the bathroom and Arthur is signing for more.