This week on the Best of Car Talk, Click and Clack answer the desperate plea of a depressed college student. Leah is contemplating the meaning of life and writes to Car Talk seeking answers. (Clearly more competent talk show hosts were busy!) Can Tom and Ray set her straight and help poor Leah find happiness? Meanwhile Hope's massive mutt has taken to riding on top of her pickup, and Paul's daughters are annoyed at his selective hearing. Will they hate dear old dad even more if he follows Click and Clack's advice? All that and more, in this week's automotively therapeutic episode of The Best of Car Talk.