gistfile1.rbx

module James
  def movie ; "The Big Lebowski #{@special}" ; end
end

module Bob
  def movie ; "Spiderman #{@special}" ; end
end

module Jane
  def movie ; "Raiders of the Lost Ark #{@special}" ; end
end

class Friends
  include James
  include Bob
  
  def initialize(something_special = nil)
    @special = something_special
  end
  
end

f = Friends.new('is my favorite movie')
f.movie        # => "Spiderman is my favorite movie"

Friends.send :include, Jane
f.movie        # => "Raiders of the Lost Ark is my favorite movie"

# The problem is our 'Friends' group is a rather homogenous bunch. How can we single out a movie from
# this friends group?

james_favorite = James.instance_method(:movie)    # => #<UnboundMethod: James#movie>
james_favorite.bind(Friends.new('sucks')).call    # => "The Big Lebowski sucks"
james_favorite.bind(f).call                       # => "The Big Lebowski is my favorite movie"
f.movie                                           # => "Raiders of the Lost Ark is my favorite movie"