Image a person, while building a house, realizes that he will need some nourishment soon. So he decides to invite three people to help him. Well, of course, he is in the middle of the forest, so there isn't anyone around to invite. But his parents taught him an ancient, secret method of cloning himself. So he clones three baby replicas of himself. He then locks them in his house because he would suffer if they weren't there to help him. He raises the first as a hunter, the second as a cook, and the third as a lover. In not much time at all, the hunter is harpooning critters in the yard and reeling them back into the kitchen. The cook is preparing and serving great meals with the catch, and the lover is watching pornos, cuz there ain't no wimmen.
Yet the house owner still isn't getting quite enough nourishment, and since he is so busy taking care of his house, he teaches his helpers how to each clone themselves. By the time the helper's clones have matured and start to help the household, the newest clones are instructed to repeat the cycle. Groups of the newest three clones keep cloning an ever newer group of three. Eventually, the house owner gets pooped, the house is completely full, and he gets tired of the free-loading porno pervs. So, when there are enough houses that have sprung up in the neighborhood, he kicks the lovers out of his house, and tells them not to come back.
The moral of the story? Cloning can help you build your house, but if you want your kids to have a chance to build a better house, ya gotta lay some pipe.