Why Zoe and I Usually Only Make It Through One Bedtime Story

Conversation while reading "Snuggle Puppy" by Sandra Boynton:

Zoe: Do dogs pick their noses?
Me: No.
Zoe: Why not?
Me: Dogs don't have fingers.
Zoe: *Them* dogs have fingers (pointing to the book).
Me: Well, those are cartoon dogs. They're also making cookies. Real dogs don't make cookies.
Zoe: Choc CHIP cookies.
Me: Yes.
Zoe: That dog girl?
Me: I'm not sure. I can't really tell.
Zoe: Has a short tail. Long ears. Must be girl.
Me: Really? Is that the rule with cartoon dogs?
Zoe: Or maybe boy. Some boys have long hair.
Me: Yes, yes they do...