I had a traumatic experience with an attack by a student while teaching. I still have physical reactions to otherwise non-traumatic occurrences that stem from that experience, twenty years ago. Most notably, some 6 or 7 years ago, I went with my mother and a friend to a French movie about a teacher in an underserved area of Paris, and the attack on the teacher by a student was almost identical in circumstance to what happened to me. Without prior self-awareness, I jumped out of my seat and screamed simultaneously and had to run out of the theater, where I sat down on a bench and sobbed uncontrollably for several minutes. I have never had such an experience before or since--but I have definite overreactions to milder forms of threat, including those in dreams, and the physical effects are significant.