Sed and Avery are five minutes into "The Wheels on the Bus," and they've used up the standard subject fodder, both mechanical (headlights, wipers, door) and human (driver, babies, mommies, businessmen). But since the kid's enjoying it, Sed's still going.

"The ..." she begins the next verse, and then looks at me as if to ask, who else actually rides a bus these days, especially in a sprawling metropolitan area such as ours?

Who, indeed? It just comes to my head -- I unthinkingly blurt, "Hippies."

Without missing a beat, Sed turns back to the baby and sings, "The hippies on the bus go, 'Pass that toke, pass that toke....'"