Once, Magary was leaving to exercise on a trail, planning to walk through woods that were near a creek. His daughter asked to come and the two walked together, each listening to their music players. Magary was pleased at the bonding time. "We'll do this every day and one day she'll become an Olympic race walker even though she was gifted with no athletic genes of any sort," he imagined. "Power moseying will become the girl's passion. She'll never want to watch TV or play a video game again. She's just gonna be all about the moseying. And we'll forge an unbreakable bond and never fight again. We might join forces and become a pair of power walking spies, chasing down rogue agents with our relentless four-mile-per-hour pacing."

Runners compete in the New Jersey Marathon
Mel Evans/AP