I have the 10cc catalog pretty much committed to memory, as well as all of Godley & Creme's works, AND the early "Neanderthal Man" single...
...fuck me the greatest name-dropping moment of my life is that I sold an actual, original Gizmo to Marty Willson-Piper of the Church...
...but I have never bothered to get or even listen to "Waterfall".