He knew he was late. Claus had never been late in his entire life. Could he reasoned out with traffic? Traffic wasn't entirely valid when you're a wizard and he knew that the Minister of Magic shouldn't wait. He was the boss, he should not be the one who's going to wait. Though, this was his office and either way, he needed to wait himself. Claus ran his life to reach the door and knock twice. That would be enough, right? Especially when they're already starting. And he also hoped with his life that they're just on the first part of the meeting.