Thievery! All of us with younger siblings know what it’s like. Your favorite pair of off-brand boots from Target (or wherever), vanished, and you know who’s to blame. “They’re too small for you!...

Think about the first time you put on a pair of flip-flops. Do you remember the snap-crackle that follows every step? What about the marvelously loose grip they have on your feet? We live in a society...