It's not that your co-workers aren't happy that your day is aloft with the sound of music, and your heart is filled with song--they are. But they'd still like you to keep it to yourself. This slideshow from eWeek details some of <A HREF="http://www.eweek.com/slideshow_viewer/0,1205,l=&s=26744&a=202638&po=2,00.asp?kc=EWEWEMNL030907EP35A">the worst cube-dwelling offenses.</A>