Car Wash

I picked G up from school the other day, and noticed that his face looked a bit smudged - or maybe it was dirty? - under his lip.
"G, you've got dirt on your face. Have you been eating dirt?" I asked him, jokingly. Because really, who eats dirt at his age?
"Yeah, I was," he admitted, although without a hint of shame.
"Where were you eating dirt?" was the logical next question.
"I licked the back of the van."
I checked. It was true. A small, lone, clean space on the back of our otherwise filthy vehicle.