I had a 6-year old pull a knife on me while screaming "I will [end] you". This was the culmination of a lot of various incidents with the same kid. What was most infuriating was the parents claiming they had the sweetest little boy and that we (the school) must be liars for saying otherwise. Eventually he was transferred to a special school after we filed a report on the various incidents. I felt really bad for the kid because when he wasn't freaking out over something he would be the sweetest guy asking a ton of questions and participating in the activities, but he was highly prone to snapping into hysteria. The incident with the knife happened in this afterschool setting where the kids go to play and have fun. Apparently another kid had done something he disliked so he was kicking and spitting on him when I pulled him away. He ran straight to the drawer and found a little kitchen knife. Due to his size it was pretty easy to wrestle out of his hands though so no harm done. I guess dealing with s****y parents was what made me change my career.