Not my favorite, though still a catchy tune, but the backstory is a study in what generates the creative process. In 1979, a troubled 16 year old girl took a gun to school in San Diego, and shot a couple of adults and several students. After the police arrested her, they asked her why she did it. She responded "I don't like Mondays".
Bob Geldorf, lead singer of the Boomtown Rats, was incredulous when reading about her response. He felt compelled to write a song about the incident. Something that probably would not be done today.
Geldorf later stated that he regretted writing the song in that it gave the perpetrator even more notoriety.