Sam thought that a lot of people had issues, but that didn't mean they spent their time trying to make others' lives as unpleasant as possible. A lot of students had lost family members during the war, but they hadn't decided to lash out at the world because of their grief. Well, not for more than a few months, anyway. Though perhaps that was because the professors and other students had been there to watch out for them and make sure they knew they weren't alone or abandoned. Like Louise said, it wasn't simple... and he was glad they weren't going to dwell on the subject.
"Yeah, that's right. There's a list of substitute professors who can be called upon when they're needed. But sometimes, if someone's taken ill at short notice, there isn't time to contact another professor. I never got called upon, I'm glad, really. Do you remember how we used to behave in class when there was a substitute?" It was a rare student indeed who didn't consider the phrase 'substitute teacher' to mean 'time to pass notes in the lesson and not bother to pay attention'. Although Sam and Louise had been in different years he doubted whether their behaviour at school had been too different. Of course, now they'd talked about it, he'd probably find himself called upon to cover a transfiguration class on the first week back...
He smiled. "No, it never gets boring. I'm not really teaching the same thing, you see. I mean, the subject matter is the same, but each year there's a new class of students, and they learn in different ways. One class might master reading playing cards in a matter of weeks but struggle with crystal balls, while another only ever really excels at practical work and their essays are terrible. So I need to adapt my classes to match how they learn. I could be teaching the same subject thirty years from now and there would still be new things to discover..." he glanced at Louise, checking she wasn't bored with what he was saying, or worse, that the idea of him still being a professor when he was nearly seventy disturbed her. Sam didn't often talk at length about his work, thinking they had more important things to discuss when they were together. But it made him happy that she was taking an interest. He followed her gaze upwards and watched the eagles, soaring above the arena in a synchronised pattern. It looked peaceful and relaxing, though he knew how much strength it would take the birds to fly against the wind currents. There was probably a metaphor for life in there somewhere.
Louise's answer surprised him. He had been expecting her to say history, or perhaps some sort of duelling class even though that wasn't a specific class. But muggle studies? It was a strange answer at first thought, but her reasoning... "You're right. it's human nature to fear what we don't understand. The more we understand others, the better we can co-exist with them, as you say." he drank a little more coffee as he considered what she'd said "You'd make a pretty good teacher, I think" he added, and was surprised at the rush of feeling the idea triggered. It was crazy of course; Louise was happy running her gallery and arranging exhibitions. All the same, it was nice to dream sometimes.