"Itachi-kun, you should have leaned on me on your way." He turned, regarding Kabuto for a long, calculating moment, then he plucked up some papers and set them on a space of empty desk, moving off to collect his concoction, well, a portion of it, before heading over to Itachi. "You're going to drink this. It's going to taste horrible, and it's going to burn all the way down, but you must not cough it back up."