The door of the RV was not wide enough to accommodate her mother's wheelchair, so the next day, the son drove over a second option: a 1988 banana yellow diesel Mercedes-Benz “with enormous doors and a front seat that lies down flat, all gassed up ready to go,” Dr. Fitzgerald said. The generosity of spirit in that deed “was extraordinary,” she said. “There's an act of friendship, one that lasted well after the old man's death.”