Buttered Bread

Its quite common to say that bread always lands on the buttered side. The people who say it can't know that for sure, cuz they arent around every time someone drops a buttered slice of bread. I decided to make an experiment to see if it would at least happen when I try it. So I buttered a slice of bread and flipped it into the air ten times. It landed (with a sploosh noise) on the buttered side nine out of ten times. Which disproves the whole "it always lands on the buttered side" theory. However it did prove that it happens more often then not. I was wondering what causes it. First I figured that it must be gravity that pulls the heavier side with the butter downward and it lands that way. Then I realized it cant be gravity, cuz butter (even if it would be a couple of pounds of butter) wouldn't change the weight of the bread, it'd still have the same weight and it'd fall on whichever side is on the bottom when it hits the ground. Then I figured it must be that when butter is placed on bread the bread on the side without the butter absorbs some sort of magnetism from the butter and it pushes itself down on top of the buttered side. Therefore, it would be reasonable to assume that if you would butter bread on both sides it would hover indefinitely (or at least until the butter falls off, or gets eaten by passing birds)in the air. I havent tested this theory out yet, but I'l let you know the results when I do.