My scariest teacher experience: Controlling a classroom full of 5-to-8-year-olds running in a frenzy while a kid rushed at them with a handsaw.
I remember specially one creepy/scary moment I had as an extracurricular teacher of English as a Second Language for young kids, after school hours.
Each school had a different system for the after-school activities; in this one I was supposed to turn up at a specific hour and the children would be in our classroom, with a school monitor keeping an eye on them as they arrived from their different classes. It was a complicated group, with a mixture of children between 5 and 8 years old, so their reading, writing and drawing capacities where quite different.
One day I could hear more noise than usual as I approached the room. I peeped in through the door’s window and saw mayhem going on. The monitor was nowhere to be seen and the children where shouting in what seemed more like panic than just playing around. I opened the door and I saw one of the older boys, X, running around with a handsaw in his hands!