setTimeout roulette

roulette.js

(function(){
  var old_timeout = setTimeout;

  setTimeout = function(fn, timeout) {
    if (Math.round(Math.random() * 6) === 1) {
      throw 'The cogs of the software industry are greased by the blood of unwary developers. Today that blood is yours.'
    } else {
      old_timeout(fn, timeout);
    }
  }
})();