I'll start with the age-old debate: what is the proper way to hang toilet paper? You see, some people - we'll call them "Patriots" - have made the intelligent and moral decision to hang their toilet paper so that it dispenses over the roll. Others - we'll call them "DIRTY HEATHEN COMMIES" - have chosen to give in to stupidity and vice and defy God's law by hanging their toilet paper so it dispenses un**r the roll (obscene term partially censored in case children are viewing). Here is a wee illustration:

I submit to you that these "un**r-lovers" are EVIL and UNNATURAL, and wish to tear our society apart from the bottom up! If we allow these traitors in our midst to continue their abominable practices, what next? Mayhem in the streets, dogs lying down with cats, and unadulterated anarchy is what! This is the thin end of the wedge, people, and if we don't take a stand now, someday we'll sit back with our grandkids and tell them melancholy tales of how the world was once free.
Disagree with me? Well, BRING IT!
The whole premise of your argument is faulty and stems from a narrow-minded view of the world. If you pulled your head out long enough to apply some logic (which is, apparently, asking too much)you would realize that OVER or UNDER is not the issue.
The only correct American way to hang the paper is perpendicular to the wall...not parallel like some Euro-pansy or Canadian.
The only question then is whether the paper should unroll toward you or away from you. The answer to that should be painfully obvious to any right-thinking person, and I am not about to enter into that discussion with the likes of YOU!!!
Ooh, you are just SO EDGY, aren't you?? With your high-falutin outside-the-box paper placement? You stick your nose any higher in the air and you'll drown the next time it rains. And that is SCIENCE FACT.
As far as your ludicrous TP positioning, you may think you're above it all, but you're JUST AS BAD as the people you claim to despise. When you hang your toilet paper perpendicularly, where does the last bit on the edge of the roll go? Well, if I remember my chemistry, gravity is gonna pull that little guy DOWN. And sooner or later, where does it end up? Smack in that sinful little valley we call un**r the roll!!! Deny it all you want, but you are one of THEM, hiding in plain sight!! QED WHAT