Sanding a boat is a long, tedious process. Since your mind is not engaged, you have lots of time to think. Maybe you plot out the next steps of the project, or maybe your even daydream about being out on the water. Sand long enough, though, and you run out of things to think about. Your mind spins out-of-control, and you can't be sure of what it'll come up with. While sanding the seventeenth acre of this boat's hull, my mind was well into that mad, out-of-control phase and somehow, for some reason, it ended up coming up with a song.... Here's the result:
It's not my fault, it's the sander's!