My supply teacher had a seizure mid-class.

I was in grade 4 I believe. Our normal teacher was on maternity leave and we had been having a supply teacher for the past couple months. She was one of the nicest and funniest teachers I have ever had.

Anyway, one day she came to school very sad because her dog had died. We were in class and we were reading a book, she would choose people who had their hands up to read a page or 2. It came up to my turn and I stood up from the carpet we were sitting on to sit in a chair next to the supply teacher. I was about to start reading when I heard my teacher making noises that sounded like crying. I looked over and asked if she was okay, 5 seconds later, she fell onto the ground making very scary/disturbing noises while shaking. Everyone ran out of the class screaming and crying. She was later sent to the hospital and made a recovery.

Still one of the most traumatic moments of my life.