First act
7:45 at a school in Germany. A group of pupils stand outside the door of a school building. One of them needs to get into the building urgently: He needs to use the toilet.
Just then, two trainers from the Trainingskollektiv Kölner (Cologne Training Collective ) approach the door, which is being guarded by a caretaker. Over the next two days they will carry out de-escalation training with a fifth form class. The two trainers reach the entrance hall of the school after…