Rhinoceros. Of course, why not. "I would venture to say that you might have fared much worse than a cracked rib."

He's rummaging in his bag for the packets of pain medication when the possibility of name recognition draws him up short.

"Nothing of the kind, I'm afraid. Before I came here, I was assistant surgeon and naturalist on a Royal Navy Discovery Service expedition to the Arctic."

He's already bracing himself.