Random number being generated 60 times when I only want one.

Ok, first off I'm a Unity noob and only somewhat experienced with programming in general, AND I've been awake for ~30 hours. This is probably a dumb question but I can't figure out what the problem is. The code is:

 function Start () {
       var x : int = Random.Range(0,11);
       print (x);
 }

I want this to make one random number (0 through 10), store it in x, and print it to the screen. One time. I'm using it as part of a bigger script obviously, but everything else is commented out.

It prints 60 numbers instead of just one, and it's really screwing up my stuff. I thought the things in the start function only executed once? When I put it in Update, it just keeps spamming numbers, and when I make it its own function, I still have to call it and it does the same thing. Any help would be appreciated, this is driving me crazy and it seems so simple.