how you can tell Wesley is a second child

I was changing Mary's diaper earlier and I didn't have a free hand. I glanced over to make sure Wesley was okay and found that he was chewing on my shoe. I shrugged, thought, "Whatever," and went back to changing the diaper.

I mean, after all, he'd already tasted the dirt. It's not like he was going to get MORE dirt if he kept chewing on it.