Here's the Matthew question of the night:
"Daddy, why are we the only ones in the neighborhood with a lamppost?"
"Because your mother wanted one and we paid a lot of money for it."
"How did you dig a square hole for it?"
Pause. Big smile. Laughter.
"I didn't. I dug a hole, then put the dirt around it. It only looks square."
"Oh, yeah. That makes sense."