Remus was far from sober himself. He wasn't really thinking (for once), just acting and reacting and letting things flow in the direction they flowed. Which was why, without thinking, he reached over and slipped George's glass from his hand and set it on the table in front of them, inspecting the bottle George had brought out and how it was, miraculously, still about half full. Strange. Of course then he noticed the label and it wasn't so strange anymore.
He turned back to George then, staring at him - inspecting, almost - with a near-critical glance. "You're not busy now," he said, before he could think about exactly what he was saying.