Conversations with Charlie

Cast: Charlie and Me
Scene: We were in the car going over to a friend's house we had never been to before
Script:
Mama: Charlie, guess what Sarah and Eddie have a dog. His name is Elvis.
Charlie: Dog have eyes?
Mama: Uhhh....Yes, Elvis has eyes
Charlie: Two eyes?
Mama: Uhhhhh.....Yeah. He's got both his eyes.
Charlie: They purple?
Mama: Uhhh.....No, they are probably brown
Charlie: Oh. Not purple?
Mama: Nope. Brown....
Charlie: Huh.

So where has my child seen a purple one eyed dog?