Well, Hisoka doesn't know it'll be just the two of him, now does he.

"I certainly will, I've so been looking forward to it, though it'll be tough getting it for the three of us." Chuckling, he quite liked the look on Killua's face just there.

"It will we a productive way to keep me out of trouble until then though, don't you think? Once I find a better job."