Well, it was also about a case of American blind justice. 
Five Man Electrical Band did “Werewolf,” about a boy who becomes a werewolf, and whwose father kills him with a silver bullet. The same band did “Signs,” about signs littering the landscape.
Mary Chapin Carpeter’s “This Shirt” is about one of her shirts, and how she has been wearing it at various points in her life. The song strays close to the “life is great/life sucks” category but doesn’t quite get there, IMHO: the shirt gets lost in a bus terminal locker, a cat give birth to kittens on it, it gets torn when somebody tries to roll a pack of cigarette up in the sleeve, and so on.
Dean Martin and Sammy Davis Jr. did “Sam’s Song,” which is basically a friendly argument over what to call the song they’re singing. Dean, naturally, wants to call it “Dean’s Song,” but Sammy disagrees.
Klaatu’s “Sub Rosa Subway” was about the Beach Pneumatic Transit system in New York City, and how Alfred Beach had to build it secretly–he built it sub rosa, as it were. Klaatu also did the original version of “Calling Occupants of Interplanetary Craft,” which is about making contact with space aliens.