*really* avoiding stack overflow (ahem)

lib/oink/rails/instance_type_counter.rb

@@ -1,4 +1,13 @@
 module Oink
+
+  def self.extended_active_record?
+    @oink_extended_active_record
+  end
+
+  def self.extended_active_record!
+    @oink_extended_active_record = true
+  end
+
   module InstanceTypeCounter
     def self.included(klass)
       ActiveRecord::Base.send(:include, OinkInstanceTypeCounterInstanceMethods)
@@ -45,18 +54,22 @@ def self.instantiated_hash
         def self.total_objects_instantiated
           @@total ||= @@instantiated.inject(0) { |i, j| i + j.last }
         end
-
-        if instance_methods.include?("after_initialize")
-          def after_initialize_with_oink
-            after_initialize_without_oink
-            increment_ar_count
-          end
 
-          alias_method_chain :after_initialize, :oink unless instance_methods.include?(:after_initialize_with_oink)
-        else
-          def after_initialize
-            increment_ar_count
+        unless Oink.extended_active_record?
+          if instance_methods.include?("after_initialize")
+            def after_initialize_with_oink
+              after_initialize_without_oink
+              increment_ar_count
+            end
+
+            alias_method_chain :after_initialize, :oink
+          else
+            def after_initialize
+              increment_ar_count
+            end
           end
+
+          Oink.extended_active_record!
         end
 
       end