When I was in school, one or two were genuinely nice people, who would be supportive when some of us were struggling. But most of my PE teachers were overly strict or had a nasty streak.
Lots of not very nice moments stand out. I remember a guy who was really struggling in gymnastics having to keep attempting the same jump and fail and fail over and over again in front of the whole class, while we all just watched. The teacher got increasingly angry, and it was just cruel on him. I felt sorry for him, and nervous because I wasn't sporty and it could easily have been me.
Another time too many of us didn't have our kit and they didn't have enough spare tops, so me and one other boy had to do the class in just shorts (shirtless). I hated my skinny body and wanted the ground to swallow me up.
Any similar experiences?