mongoid shouldn't extend core Object class (using mongoid with sequel)

mongoid_with_sequel.rb

require 'rubygems'
require "sequel"
require "active_support"

#  * mongoid (2.0.2)
#  * sequel (3.24.1)

module Mongoid #:nodoc:
  module Extensions #:nodoc:
    module Object #:nodoc:
      # This module converts objects into mongoid related objects.
      module Conversions #:nodoc:
        extend ActiveSupport::Concern

        module ClassMethods
          def set(value)
            value.respond_to?(:attributes) ? value.attributes : value
          end

          def get(value)
            if value && respond_to?(:instantiate)
              instantiate(value)
            else
              value
            end
          end
        end
      end
    end
  end
end

class Object
  include Mongoid::Extensions::Object::Conversions
end

module Sequel
  module Plugins
    module Dumb
    end
  end
end

Sequel::Model.plugin :dumb