You're really intelligent, Saya-chan. If there is someone who can figure out how to make this place difficult to eavesdrop on, it's you.

[He's not worried about Shibusen, and he's not as paranoid as Lili to start dumping communicators in lead boxes, but he's been here for more than a couple of Guests gone bad, and with the Watch gone, those are the people he's improving their defences against.]