But it's not a box...

We are just exiting out of the Lincoln Mall parking lot, waiting at the red light, when I hear a question from the rocketseat that I wasn't quite expecting...

Aria: What's that cardboard?
*Matt & I look at each other, puzzled*
Matt: What do you mean, cardboard?
Aria: That cardboard, right there (points to large sign), what is that?
Matt: You mean, the huge sign that tells us which stores are in here?
Aria: Yeah....that cardboard. What's that about?
Matt: Well, it's a big sign that tells us what stores are here to shop in.
*pause*
Aria: (giggling) THAT'S SILLY!!!

Kid will be 3 in just a few days & already with the comedy...