Robert Fulghum's new book begins with a question we've all asked ourselves: "What on Earth have I done?" As Fulghum finds out, the answer is never easy and, almost always, surprising. For the last couple of years, Fulghum has been traveling the world, from Seattle to the Moab Desert to Crete, looking for a few fellow travelers interested in thinking along with him as he delights in the unexpected: trick-or-treating with your grandchildren dressed...