"Don't ask me why. I've never been able to figure it out."

By way of answer, he tugs her along, not breaking contact but approaching his room. It's most less-open place he can think of, and a fairly short trip, all considered.

"Not a bad thought to consider," he acknowledged, approaching the elevator. "But I think we should both be firing on all cylinders before we go making ourselves paranoid. I've heard of this thing causing delusions."

Hasn't he? He thinks he has.