Editor’s note: This is the first of an occasional series on family businesses where multi-generations work together.Phil Waterford Junior had made up his mind.He was going to work for his dad, Phil Waterford at Manteca Ford & Exotic High Line.Phil Junior — now 29 — had just graduated from Sierra High where he played basketball for the Timberwolves.Phil remembers the day well.“He was putting on nice pants, a shirt, and a tie that morning and I asked him what he was doing,” Phil recalled. “He told me he was going to work with me. He thought he was going to start selling cars.”Instead, his father put Phil Junior to work in the detail shop.It wasn’t just a case of learning the business from the ground up.