# File /Users/nshb/svn/svn.inimit.com/railsmanual.com/www/trunk/src/rails-2.0.1/activerecord/test/transactions_test.rb, line 191
    def add_exception_raising_after_create_callback_to_topic
      Topic.class_eval { def after_create() raise "Make the transaction rollback" end }
    end