My favourite Terry Francona story, oft-repeated, one more time.
Sean Casey, playing for the Red Sox, was thrown out twice at second base, trying to stretch a single, within one week. After the second one he was visibly upset in the dugout, in a rage, and so Francona put his arm around Casey's shoulder in a fatherly way, and walked him up the runway towards the clubhouse. When they were safely out of earshot of the other players, Francona turned to Casey and asked: "are you sure you don't have polio?"
That's why I love Terry Francona.