The shiny BMW motorcycle startled me as it rumbled into my parents' driveway and stopped beside my husband and me. In disbelief, I watched John,* a high-school boyfriend from more than 20 years ago, dismount and remove his helmet. After a confusion of hugs and handshakes, John insisted I not let his surprise visit disrupt the after-dinner walk with my family we were just beginning. Instead, he invited himself along.