public function getCommentsBefore(array $options = array()) {
		$options['wheres'][] = "
			e.time_created < {$this->comment->time_created}
		";
		$options['order_by'] = 'e.time_created ASC';
		$comments = elgg_get_entities_from_metadata($this->getFilterOptions($options));
		if (is_array($comments)) {
			return array_reverse($comments);
		}
		return $comments;
	}