As soon as their professor stepped foot into the class, all hell broke loose. It was to be expected. His mathematics exam had been quite hard to solve.

"Professor Moriarty! That test was way too hard!"

Oh, there they went at it again the moment William stepped into the exam hall. His students would always complain about the difficulty of his exams.

"Oh, but this is a part of your current thesis." William explained with a soft smile, grabbing the exams from his desk so he could carry them to his office.

"The questions were way too difficult! Do you give your studies pupils such difficult exams too, Professor?" one of the gentleman studying mathematics in his class asked.

With a chuckle, the mathematics professor shook his head. He had expected that question, in a way. "No, not even I am that cruel."

After shortly thanking the professor that had watched his class for him during the exam, William walked out into the hallway again. He would get the exams and the answer sheet to his office, hoping to review them in lunch break later.