Competition

What drives a man (or in the case of this contest, two men) to compete? In some cases it is obvious. Like when we were all cavemen and we had to spear a lion or we wouldn't eat, that was competition. Or when somebody joins the National Guard to get college money and then is required to go overseas and make war, that is competition. Or when one man is called a pussy by another man and then has to either actually chug the whole thing or be, at least by one person's standards, a pussy, that is competition. But those kinds of competition are not what I am talking about.
What makes two idle men, decide to compete against eachother when neither is inclined, typically, towards encasing things in plastic? Maybe it's an intrinsic desire to improve oneself? To expand oneself? (Or would you ask- surely there's a better way to improve oneself than by encasing an ironic thing or two in plastic? Well you have a point, but I wasn't trying to say that that is my answer. I was just throwing it out there as an example of an answer.) There is that saying about a knife needing a stone to sharpen it. Or maybe it is just that on our own neither of us would have the courage to try to encase something in plastic, but by challenging each other we are each able to achieve something that, without the magical ingredient, "competition," we would not even attempt.
Anybody know if there are any encasing competitions mentioned in the bible?

take care,

David