diff --git a/Gemfile.lock b/Gemfile.lock
new file mode 100644
index 0000000..d404977
--- /dev/null
+++ b/Gemfile.lock
@@ -0,0 +1,14 @@
+GEM
+  remote: http://gemcutter.org/
+  specs:
+    gemcutter (0.6.1)
+    rcov (0.9.8)
+    rspec (1.3.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  gemcutter
+  rcov
+  rspec (= 1.3.0)
diff --git a/README.rdoc b/README.rdoc
index 44964df..b527475 100644
--- a/README.rdoc
+++ b/README.rdoc
@@ -36,6 +36,15 @@ Cranky steals its core syntax from Factory Girl...
   Factory.build(:user, :name => "Ian")  # Override a default attribute value
   Factory.attributes_for(:user)         # Return a set of valid attributes rather than the object
 
+And has a nice debug option (rails only) to warn you when your factory is broken, recommend you do this for your first spec...
+
+  describe User do
+    it "should have a working factory" do
+      # This will raise an error and report the validation errors should they occur
+      Factory.debug(:user).should be_valid
+    end
+  end
+
 Cranky allows you to build factories via std Ruby methods, like this...
 
   # factories/my_factories.rb
@@ -226,6 +235,16 @@ Sometimes it is useful to be warned that your factory is generating invalid inst
 
   Factory.debug = true
 
+Or run within a block...
+
+  Factory.debug do
+    Factory.build(:user)
+  end
+
+Or inline (runs the build method with debug enabled)...
+
+  Factory.debug(:user) 
+
 Note that this relies on the instance having a valid? method, so in practice this may only work with Rails.
 
 === Attributes For
diff --git a/lib/cranky.rb b/lib/cranky.rb
index 3dd9fe2..8596cad 100644
--- a/lib/cranky.rb
+++ b/lib/cranky.rb
@@ -12,7 +12,7 @@ class Cranky
 #    end
 #  end
 
-  attr_accessor :debug
+  attr_writer :debug
 
   def initialize
     @what = []
@@ -39,6 +39,21 @@ def attributes_for(what, attrs={})
     build(what, attrs).attributes
   end
 
+  def debug(what=nil)
+    if block_given?
+      @debug = true
+      yield
+      @debug = false
+    elsif what
+      @debug = true
+      item = build(what) 
+      @debug = false
+      item
+    else
+      @debug
+    end
+  end
+
   private
 
     def n
diff --git a/spec/cranky_spec.rb b/spec/cranky_spec.rb
index 7246d96..f3ba1ab 100644
--- a/spec/cranky_spec.rb
+++ b/spec/cranky_spec.rb
@@ -63,16 +63,45 @@
     b.unique.should_not == c.unique
   end
   
-  it "should raise an error if the factory produces an invalid object when debug is enabled (rails only)" do
-    Factory.debug = true
-    error = false
-    begin
-      Factory.build(:user)
-    rescue
-      error = true 
+  describe "debugger" do 
+
+    it "should raise an error if the factory produces an invalid object when enabled (rails only)" do
+      Factory.debug = true
+      error = false
+      begin
+        Factory.build(:user)
+      rescue
+        error = true 
+      end
+      error.should == true
+      Factory.debug = false
+    end
+
+    it "can be run as a block" do
+      Factory.debug.should == false
+      error = false
+      Factory.debug do
+        begin
+          Factory.build(:user)
+        rescue
+          error = true 
+        end
+      end
+      error.should == true
+      Factory.debug.should == false
     end
-    error.should == true
-    Factory.debug = false
+
+    it "can be run inline" do
+      Factory.debug.should == false
+      error = false
+      begin
+        Factory.debug(:user)
+      rescue
+        error = true 
+      end
+      error.should == true
+    end
+
   end
 
   it "should allow arguments to be passed in the overrides hash" do