Re:psychologically (Score 3, Interesting)

You laugh, but this actually happened. Frank Zappa's completely instrumental album Jazz From Hell was marked with one of the first "Parental Advisory - Explicit Lyrics" warnings. I repeat: the album has no lyrics. But it had an explicit lyrics warning from the RIAA. The likely reason? His vocal opposition to the Tipper Gore-led Parent's Music Resource Center, whose bludgeoning pressured the RIAA to start putting those warnings on albums in the first place. See http://ericnuzum.com/banned/incidents/80s.html, http://en.wikipedia.org/wiki/Parents_Music_Resource_Center, and http://en.wikipedia.org/wiki/Jazz_From_Hell