A book about muumuu’s?

I was driving home with Grandma and Hannah in the backseat (Grandma is scared to sit in the front because she thinks I may just kill her with my driving, and she doesn’t want to actually witness it.  She says she sits in the back because it’s more supportive to her neck).

“There’s a little girl.”  I heard Grandma say to Hannah.  I glanced in the mirror.  Grandma was pointing things out in one of Hannah’s story books.

“There’s a little muumuu.”  What?  Visions of a little girl wearing an awful might-as-well-wear-a-burlap-sack-for-a-dress muumuu filled my head.  What the heck kind of book was this?

MuuMuu House Dress – Modern Flowers Petal Sleeves Caftan Kaftan Hawaiian Aloha Pullover Cotton Lounger – Regular and Plus Size

I’m embarrassed just looking at this picture

“There’s a big muumuu.”  Why does Hannah have a story book filled with people wearing muumuu’s?  Yuck.

“There’s a baa baa.”

Oh, now I get it.

“Cow!” I tell Hannah from the front seat.  Not that she could hear me since my mouth was facing the windshield, and not her.

Sure, it may be cute if she calls cows moo moo’s now.  Not so much when she is like 5 and thinks that is actually what they are called.  I don’t want her to be that kid at school that no one talks to because she goes over to all the books and starts making animal noises and doesn’t know what people are talking about when they ask her if she has a dog at home (what’s a dog?  Oh, you mean a woof woof?).

No, a cow is called a cow, and it says Moo.  Now how do I tell Grandma that I don’t want my child thinking animals are called the noise they make?  I don’t want to insult her, or make her get cranky and hide in her room for an hour sulking.  How do I nicely let her know that a cow is not in fact called a moo moo?  Sigh, being non-confrontational is hard.