— Was he frustrated? of course yes. a room full of students who didn't even seem to care about what he was saying and some were even sleeping! what a lack of respect and consideration.

Viktor took a deep breath as he leaned on the bangala with one hand and with the other he wrote the echoes on the blackboard in front of him.

"It's a complicated echo with a long response...it may take a few hours to be resolved and-" Viktor's voice was gently cut off by your voice

"It's wrong..."You politely speak

"..excuse me...?"Viktor spoke as he turned to look at the owner of the voice and raised his eyebrows in surprise