We'll call the millionaire, "John."
Some 27 years before this story happens, John hires a Mexican - we'll call "Carlos" - as a lumberjack, or something. Over the years, Carlos proves himself to be a devoted, honest, hard-working man who John comes to rely on more and more. By 20 years into their working relationship, Carlos is a trusted right-hand and - more importantly - has become a good friend to John.
John decides to amend his will so that when he dies, Carlos will inherit a third of the lumber business.
Johns ne'er-do-well children catch wind of this and are outraged. They proceed to make an agreement and draw up paperwork so that when their father dies and the will is executed, they'll immediately force Carlos out and take over his portion of the business.
John catches wind of this and goes ballistic, mentioning to my mother - some time later - that he's "taken care of it."
But he refuses to say what he's done, for fear of his children finding out.
A few years later, he dies and at the reading of the will, his "problem solved" is revealed: he secretly adopted Carlos, left 50% of the company to him and the rest to his biological children.
"John" was a terrific guy....I was saddened when he was gone.
Great story, thanks for sharing it!