In all Walden's lectures, he had an eye on Wally. He had seen some time to time that Wally was a bit distracted from his words and he couldn't help but be annoyed by it. After a few minutes of seeing Wally mumbling to himself something, he shouts in a harsh voice through the amphitheater to everyone's fear. "Mister, see me after class." To his words, everyone turns around to look at Wally to which he rolls his eyes. The bell rang after a few seconds of awkward silence, and everyone rushed out of the room. Wally could see a pissed expression on Professor Walden's face.