What was wrong with his day today?

Late evening on the same day...

Harry looked at his house blankly. How did he arrive here? Even though he was the one driving the car but he had no collection of driving through the usual roads to go home. He was so deep in his thought even though his hands and feet were busy handling the steering wheel, gear, accelerator and brake. It was almost like he was driving in autopilot. 

He could not even remember anything about the journey!

Even the butler who was hurrying toward him was puzzled seeing his face. What was wrong with his young master today? Why did he look so weird now? Had something happened at the campus?

Despite that, he controlled his emotion and out on the poker face as he greeted Harry, "Welcome back, young master."

Harry handed his car key quietly to the butler who promptly handed the same key to the family's driver. Then, the older man followed behind his young master.