"What's wrong with him?" Kurogane said, not necessarily addressing anyone. The meowing was certainly familiar from... that night,... but the rest was different, and he knew Fai hadn't had any alcohol to speak of. Was he in so much pain that he was acting like this? Maybe that was it. He didn't like not knowing though.

He had no idea what Mello kept doing to Fai (pulse, he'd said?), but it was apparently important since he kept checking it over and over. The kid still knew what he was doing, and he'd proved that he really did know his stuff since Fai was breathing again.

Even so, Kurogane did not want to keep Fai talking. Even if Fai hadn't had any alcohol, he was acting remarkably as though he had. Talking to him like this would be... annoying. He sighed hard, absentmindedly wiping his hand against his shirt a few times. "No, don't sleep," he ordered at Fai as a follow up to the blond's own demand, "Stay awake and explain. What were you doing on the second floor?" Bringing up that point would probably keep Fai talking, even if he was likely to just avoid the subject as always.