gistfile1.rb

class Man
  def self.setup
    puts caller.inspect
    puts 'im a man'
  end
end

class Woman
  def self.setup_man
    Man.setup
  end
end

class << Man
  instance_methods.each do |method_name|
    original_method = instance_method(method_name)
    define_method(original_method) { puts caller.inspect }
    undef_method(method_name)
  end

  def method_missing(method, *args)
    send method, *args
  end

end

Woman.setup_man