On the way home from picking my boys up at school:

Youngest: Are you going to clean up the van?

Me: Why do you ask?

Youngest: Every normal person's car is clean.

Me: So, you're saying we're not normal?

Youngest: Normal people don't use their cars for extra storage.

Oldest: Define "normal." There's no such thing.

Me: Does it really bother you that much?

Youngest: Yes. No one else's car looks like ours…

Me: Then maybe you should clean it out this weekend.

Youngest: Maybe we're pretty normal after all.