No you are misunderstanding. The scroll bar appears only after you have started to scroll (rather drag the page), then once it appears it actually gives you no control over anything. In fact it only appears - for what? Nothing. It responds to nothing, it is only there for show. If it in fact did...
May I add that I absolutely loved how Bill, like most idiotic consumers thought that by removing fat from a product (in this case, Transfat) made it healthy and gained more weight than normal off of it? Sort of like how people think that by eating Snackwells, you can eat more, when truth is...