# The meat of this code!
module Goo
  module InstanceMethods
    def babble
      return "goozied my foozy!"
    end
  end

  module ClassMethods

  end

  def self.included(base)
    if base.method_defined? :babble
      base.send(:remove_method, "babble")
    end
    base.extend         ClassMethods
    base.send :include, InstanceMethods
  end
end

class Foo

  def babble
    return "foozy"
  end

end

# adding this method to Object so it'll run in textmate :)
class << self
  # This is just a way to make this example print out nicer in a console!
  def should_be(control, test)
    if control == test
      puts "#{control}\t\t\t\t\t\t:-)"
    else
      puts "Should be '#{control}', not '#{test}'!\t:-("
    end
  end
end
# This is what I'm trying to do...
a = Foo.new                               # Create an instance of Foo _before_ the behavior is augmented
should_be 'foozy', a.babble               # Demonstrate that the behavior is from the original class
Foo.send(:include, Goo)                    # Augment the behavior of Foo with the Goo module
b = Foo.new                               # Create a new instance of Foo with our augmented Goo behavior
should_be 'goozied my foozy!', b.babble   # Make sure our new instance of Foo has Goo behavior