In the English village of Midmeddlecum, Major Palfrey asks his two daughters to behave themselves while he is off at war. Sighing, Dinah says, "I think that we are quite likely to be bad, however hard we try not to be," and her sister, Dorinda, adds helpfully, "Very often, when we think we are behaving well, some grown-up person says we are really quite bad. It's difficult to tell which is which." Sure enough, the mischievous sisters soon...