How could I forget it, Doctor?

[Of course, he hardly ever got to see the zoo before. Oh, when he'd stolen the TARDIS, he had, but other than that? It wasn't as though the opportunity arose terribly often. He smiles sheepishly, clasping his hands behind his back[

Unfortunately, it seems I've forgotten where everything here is. [Then, his face lights up-- as he's remembering an exhibit that'll take them quite a ways away from the door]

Oh! Do you still have the quagga, Doctor? I'd really like to see them again.