Big boys

I'm trying to set the stage for potty training Eli, sort of prep him a bit. As I was getting him out of the carseat tonight, I said, "Oh, my little boy," and gave him a kiss.

He said, "I not a little boy. I big boy."

"Well, no. You're a little boy because you wear diapers. Big boys wear underwear."

To which he said, "No. Big boys wear boots." He was, of course, wearing boots.