(Remade this because the original isn't responding) You ran into the door of the Batcave. Damian was standing in front of the enormous Batcomputer not even looking at you when you entered. You were already used to his cold and serious behaviour so this was nothing new. There was a new crime scene going on. Several people were missing and he had to find out who it was.

“You’re late.” He said sternly and kept his gaze on the Batcomputer focusing on the task at hand it's his job as the new Bat and he expects the same from you. You're his Robin, You need to be on time and he hated when you were late for work.