jQuery Random: Add an "element of surprise" into the chain!

jquery.ba-random.js

/*!
 * jQuery Random - v0.1 - 5/10/2011
 * http://benalman.com/
 * 
 * Copyright (c) 2011 "Cowboy" Ben Alman
 * Dual licensed under the MIT and GPL licenses.
 * http://benalman.com/about/license/
 */

(function($){

  $.fn.random = function() {
    // The result set.
    var elems = [];
    // Select all elements currently in the DOM.
    var all = $('*');
    // For each selected element...
    return this.each(function() {
      // Push a random element onto the result set.
      elems.push(all[~~(Math.random() * all.length)]);
      // And return a new set that's revertable with .end().
    }).pushStack(elems);
  };

})(jQuery);

jquery.ba-random.min.js

// jQuery Random v0.1, 5/10/2011, http://benalman.com/ Copyright (c) 2011 "Cowboy" Ben Alman, dual licensed MIT/GPL.
;(function(a){a.fn.random=function(){var b=[],c=a("*");return this.each(function(){b.push(c[~~(Math.random()*c.length)])}).pushStack(b)}})(jQuery);

Nice use of the bitwise not! Didn't think to use it like that. Now I can save some chars (while probably confusing people).