The Law of Diaper Nature

I just don't get it.... I don't get it how babies instinctively KNOW you are putting on a brand-new diaper on them! You put it on, you think, "How cute!" and you admire it for a bit. And then you hear it..... PLLLLPPPPPHHHHHHHHH!!!!!!!!! The christening of the new diaper. It is really the law of diaper nature that your baby will poop in the new diaper within 10 minutes of putting it on them for the first time. :)