His socks, obviously, but they're full of nuts.
"What are you going to do with the nuts?" I asked him.
"I'm going to make a nut store," he replied.
"Oh really? Are you going to sell nuts for planting or for eating?"
"For planting. That way people can plant them and grow nut trees."
"Oh," I commented. "So you're going to be kind-of like a forester?"
He turned to me seriously, "Mama, do you know that being a forester is dangerous?"
I looked at him equally as serious, "It is? What makes it so dangerous?"
"You could be in the forest and a tree could fall and a nut could hit you on the head and there could be a forest fire. All at the same time. And you could be knocked out on the ground and you could die. It could really happen."
"Oh my," I commented.
"So that's why I'd rather play in the woods than the forest."