Percy's eyes snapped up at the last words. His hands stilled on the parchments he was organizing. It was brief, his reaction, but careless. Stupid to be affected by something so...innocuous.
Unless it wasn't meant to be innocous. But though Percy had no doubt that Malfoy wouldn't want to get digs in against his father whenever he could, he did doubt that Malfoy kept up with the goings on of the Weasley family.
So he answered, stiffly, as he straightened his parchments. "My job title is one of the many things my father chooses not to approve of about me." And that was far too much personal information to be giving out to official visitors.
He slipped the thin stack of parchments to the other side of the desk, turning them with a practiced hand so they were facing Malfoy and his pen. "Regulations dictate that I officially warn you about the dangers of the artifact that is being returned to you," he said, because regulations did dictate as much. He doubted there was a single thing about the jewelry box or anything else in Malfoy Manor that Lucius was not fully aware of, though.