Rolodex, then.

Hannibal smiles again, a polite smile that doesn't reach his eyes. He nods at the man, a slight, sterile nod.

I hope you will excuse me my formality, he answers in perfect, beautified Japanese, his tone much like his nod, lofty and polite in a way that signals superiority. I do believe that life is far more pleasurable with it.

Perhaps it is a veiled warning, or maybe an extension of the courtesy for the man to rethink his attitude.