TG, you better duck!
Actually, it seems Williams originally composed it as a poem to be read by him during a radio 'Special' he was appearing on, but he changed his mind, and set it to music.
There was a 'cowboy poet' who lived here locally. He was prolific and constantly traveling to competitions around the West. I ran into him at the local grocery store once and asked if he had anything new and began reciting this gaddam poem of epic proportions--easily 20 minutes long. Myself and the 35 other store patrons/employees who all stopped shopping and working to listen were spellbound.
But then, folk here are entertained pretty easy ("Why, lookee there--so-and-so's got a new baseball cap!")