Whom one is speaking to - or which aspect of their character - fundamentally determines the meaning and consequences of an exhortation. 'Indulge Your Desires' comes across very differently on a billboard advertising SUVs than it does spray-painted across the broken windows of an SUV dealer. It follows that what you say is not nearly as important as how and when you say it.

Do billboard salesmen record their sales on charts? If so, who's at the top of the billboard charts for billboard sales?