I think most people will have heard about this case. It's the one where the teacher hit the student with a dumbbell shouting "Die! Die! Die!". Well, he has just been found not guilty of attempted murder, and also not guilty of causing grievous bodily harm with intent. He had already admitted causing grievous bodily harm, and will be sentenced for that, but the Judge had indicated that he will not be sending him to prison for that offence. The kicker would appear to have been the level to which he was goaded by the students, who admitted that they were attempting to make him snap.