public function banProductReview($eventObject) {
        if (Mage::helper('turpentine/varnish')->getVarnishEnabled()) {
            $patterns = array();
            /* @var $review \Mage_Review_Model_Review*/
            $review = $eventObject->getObject();

            /* @var $productCollection \Mage_Review_Model_Resource_Review_Product_Collection*/
            $productCollection = $review->getProductCollection();

            $products = $productCollection->addEntityFilter((int) $review->getEntityPkValue())->getItems();

            $productIds = array_unique(array_map(
                create_function('$p', 'return $p->getEntityId();'),
                $products ));
            $patterns[] = sprintf('/review/product/list/id/(?:%s)/category/',
                implode('|', array_unique($productIds)));
            $patterns[] = sprintf('/review/product/view/id/%d/',
                $review->getEntityId());
            $productPatterns = array();
            foreach ($products as $p) {
                $urlKey = $p->getUrlModel()->formatUrlKey($p->getName());
                if ($urlKey) {
                    $productPatterns[] = $urlKey;
                }
            }
            if ( ! empty($productPatterns)) {
                $productPatterns = array_unique($productPatterns);
                $patterns[] = sprintf('(?:%s)', implode('|', $productPatterns));
            }
            $urlPattern = implode('|', $patterns);

            $result = $this->_getVarnishAdmin()->flushUrl($urlPattern);
            return $this->_checkResult($result);
        }
    }