From: ts Date: 2001-10-08T19:18:43+09:00 Subject: [ruby-talk:22224] Re: Ruby and multiple inheritance >>>>> "J" == Joel VanderWerf writes: J> Base#foo called in this way cannot affect the instance vars of Derived. I can't understand why a module must affect an instance variable which will be defined in a class which include this module. Bad design for me. Guy Decoux