"Whatever job you have, chances are you suffer from the occasional bad day. Seamen, working girls, bartenders…it seems just about every occupation has a song about the blues that come along with the job (you can find those blues, by the way, recorded by Ernest Tubb, Hazel Dickens, and George Jones. But you probably already knew that). Anyway, here are five other songs about various jobs and the specific blues associated with them."
[Update 10/25/2015: the original link is dead, archived page is here.]