Elijah finds it endlessly amusing when he's not wearing any pants.
The other day, he woke up from his nap and this is what I found when I went in to get him out of his cot:
That's Elijah, sans pants, dancing and laughing because he has no pants on. Incidentally, he's also missing a sock and has thrown all the blankets around the cot and tossed Eeyore out! If you look carefully, you can see his pants between his feet, partially obscured by a blanket.
When I asked him about the missing sock, he showed me his foot.