About 30 years ago, my family spent a month in London--our first visit. Soon after we arrived, my wife took our 7-year-old daughter to the British Museum. When they left, talking excitedly about what they had seen, they stepped off the curb onto a busy street--and got hit by a car. The driver had managed to slow the car down enough so that there were no serious injuries. He was profusely apologetic, but he shouldn't have been. The fault was my wife's. She had looked the wrong way as she stepped off the curb, hand-in-hand with our daughter.