That's the lesson one very sleepy little boy learns in a new viral video, where he does a delightfully dozy dance. But this kid can't quite nod off, and really, who could? He's in a grocery cart!

Well, I could go on recounting the history of this type of cartoon, but that would just make me sleepy. Instead, here’s a slideshow. You can look at it now or, better yet, late at night when you ...