I don't know this teach of mine was always calm, but it was the look on his face when you did something he thought was stupid. he looked like he wanted to throw something at you, but he knew he couldn't. but he was also by far my favorite teacher probably because he was the only teacher to really teach me a skill. I mean I had Metal shop and CAD (And I'm now a draftsman), but it wasn't the same as the woodshop. I feel like he was the only teacher at my school that would also teach morals so that was another thing he had.