Those California girls, they're undeniable (I'm told). As her name suggests, Joy is less a full-fledged character than an escape for Don, who uses her to disappear from his life for a few weeks in California. There's not much else to say about this seemingly carefree young woman. Both she and Don seem to know what they want from each other from the get-go, and manage to have a fun, no-strings-attached vacation together. No harm, no foul — except to Betty, who remarks pointedly, "It must be nice, needing time and just taking it," when Don returns from his vision quest.