Don’t cross your eyes or they’ll stay like that! Feed a cold, starve a fever! Don’t touch your Halloween candy until we get it checked out! Never run with scissors Don’t look in the microwave while it’s running! This will go down on your permanent record Is any of it true? If so, how true? Ken Jennings wants to find out if mother and father always know best. Yes, all those years you were told not to sit too close to the television (you’ll hurt your eyes!) or swallow your gum (it stays in your stomach for seven years!) or crack your knuckles (arthritis!) are called into question by our country’s leading trivia guru. Jennings separates myth from fact to debunk a wide variety of parental edicts: no swimming after meals, sit up straight, don’t talk to strangers, and so on.