Wait, what? You're driving?!?

We were on the way to the shopping centre yesterday with Lani on the wheels, when she thought she'd check how Ethan felt about her driving.
Lani: Ethan, are you comfortable with me driving?

Ethan: (with shock in his face). Wait! What? (pause) I didn't know you're driving! Were you the one driving all the way here?

Lani: Yes!

Ethan: Oh my God, I thought it was Daddy. 
Well that either means Lani is now a very good driver or Ethan is really bad at paying attention. :D