On Rails, using delayed_job, Kernel.delay.puts "hello" won't work?

Question

Using http://github.com/collectiveidea/delayed_job

It says:

Call .delay.method(params) on any object and it will be processed in the background. Notifier.delay.deliver_signup @user

If I start a brand new Rails project, and create a scaffold of story, and use either:

class StoriesController < ApplicationController

  def index
    @stories = Story.all

    Kernel.delay.puts "hello"
  end

Or

class StoriesController < ApplicationController

  def self.print_something
    puts "hello"
  end

  def index
    @stories = Story.all

    StoriesController.delay.print_something
  end

It won't work? I thought delay can delay the execution of the code? The error is

undefined method 'delay' for StoriesController:Class