We have controller genes in our DNA that tells other genes to make multiples of things without having to code each individual body part individually. It points to the eye gene or the head gene (in aliens only of course) or whatever. A cool byproduct of that is that when you implant a human eye controller gene onto the gene for a fly’s leg, for example, it will grow a fly eye in that spot. This is one way we know that we’re at least distantly related to flies. We have the same controller genes.
This could be a great analogy to controller behaviours. You see, I was just putting my pants on in a morning haze, and my pants this morning had two buttons instead of one. I tend to forget to zip them up because I’m used to doing only two motions when I put jeans on, and this morning I specifically focused on zipping them. But the buttons suffered because of this focus, and I only did one of them up. Apparently I only have space in my jean-application procedure for two moves.
Side note: I was at a Mehndi (henna) party yesterday and my hands are all tricked out now. The dye was orange at first, but now it’s developed into a deep maroon. This is supposed to indicate that my boyfriend loves me very much. (Aw.)