When working warranty dispatch for a major (now defunct) gasoline pump manufacturer, a call rings in:
Me: <usual welcome shpiel>
Her: Our truck hasnt arrived!
Me: Err...Truck? What truck?
Her: The gas truck! We're running out of unleaded, and customers are leaving!
Me: Excuse me maam....We make the GAS PUMPS, we dont sell gas. You need to call your supplier for this...
Her: <Irritated> I know what number Im calling! It says right here next to the register 'Tech support number'
Me: Right, tech support if your pumps break...We are not a gasoline distributer...You need to call your SUPPLIER
Her: Why I never! See if I ever buy <Company> gas again!