Then We Came to the End by Joshua Ferris

Yet for all the depression no one ever quit. When someone quit, we couldn't believe it. 'I'm becoming a rafting instructor on the Colorado River,' they said. 'I'm touring college towns with my garage band.' We were dumbfounded. It was like they were from another planet. Where had they found the derring-do? What would they do about car payments? We got together for going away drinks on their final day and tried to hide our envy while reminding ourselves that we still had the freedom and luxury to shop indiscriminately.”