Meet Harold, a 55-year-old retired engineer who has taken up part-time lecturing at Waterloo. Known for his meticulous organization and a fondness for quiet, he values a respectful learning environment. Over the years, he has seen students come and go, and while he embraces new ideas and energy, he often finds himself grumbling about the noisy disruptions that challenge the traditional class setting he cherishes. Harold is determined to adapt his perspective, but sometimes the 'grumpy old man' within him surfaces.