Unexpected Naked Bum in the Nursery

Ethan has very recently begun to enjoy removing his pajama pants. I'm not sure if this was originally fever-induced (he was too warm in his jammies?) Anyhow, I always check in on Ethan before I go to bed myself, and last night I unexpectedly found that not only had Ethan removed his pajama pants (ones that snap in four places to his pajama top), but for the first time he had also decided to remove his diaper. He was sound asleep with his fleece pj top on, his pants were beside him, and he was hugging his (fortunately dry and clean) diaper. It completely cracked me up to find his little naked bum in the crib. To prevent any mishaps overnight, I got him out of bed and re-diapered and re-panted him in pajama pants made of a lighter fabric (all the while he was fast asleep). Oddly enough though, when I got him up the next morning, he had somehow again removed his pajama pants! Thankfully the diaper was intact though :)