When Grandparents Go Back to School

When it comes to reading bedtime stories, few do it better than a loving grandparent. But, as many grandparents are finding out, the pleasures of an occasional weekend visit are far less taxing than the day-to-day demands of being a full-time parent.

More and more of the nation's senior citizens are stepping in as primary caregivers for their children's children and taking on the full-time responsibilities that come with parenting.

And the often difficult adjustment...