gistfile1.txt

module Yaffle
  module ForActiveRecordBase # better names welcome
    def acts_as_something
      ...do some stuff, e.g. define scopes and associations...
      extend MyActsAs::ClassMethods
      include MyActsAs::InstanceMethods
    end
  end

  module ClassMethods
  end

  module InstanceMethods
  end
end

ActiveRecord::Base.send :include, Yaffle::ForActiveRecordBase