public function addCollection(Varien_Data_Collection_Db $collection)
    {
        $info = Mage::getModel('sheep_debug/collection');
        $info->init($collection);
        $key = $info->getClass();

        if (!array_key_exists($key, $this->collections)) {
            $this->collections[$key] = $info;
        }

        $this->collections[$key]->incrementCount();
    }