acts_as_paranoid_fixtures.rb

Fixture.class_eval do
  def find
    if model_class
      if model_class.respond_to?(:find_with_deleted)
        model_class.find_with_deleted(self[model_class.primary_key])
      else
        model_class.find(self[model_class.primary_key])
      end          
    else
      raise FixtureClassNotFound, "No class attached to find."
    end
  end      
end