Once you pop

I was walking past one of the dorms on campus today when I heard the Newsboys' "Love, Liberty, Disco" blaring. I was pushing a dolly with some packages on it, and I noticed myself starting to stride in rhythm with the very bad song. And then I looked around. And everyone was moving or stepping in time. I was in the middle of a Pringles commercial. Had I been chewing gum, I no doubt would have been chomping in time with my walking in time with the beat. Somewhere in this there is a principle begging to be applied practically.