A teacher who was "bullied and humiliated" daily for months by "out-of-control teenagers" snapped during a lesson and spat in a student's face.
Video footage shows some of the horrific behaviour the educator was subjected to as he was pushed and prodded, had whistles blown in his ear and was surrounded by the teenage students.
In one final act a teen squares up to the teacher, before the teacher loses his temper and spits in his face.
The teen quickly retaliates, shoving the man backwards before the clip cuts out.
The teacher, whose name has not been disclosed due to privacy laws, was teaching at the HTL Ottakring technical college in the Austrian capital Vienna.
Mum pleads with parents to vaccinate kids after baby son almost dies from measles
According to local media, the beleaguered professor has been the victim of threatening behaviour from his students for several months.
In one scene, the teacher is seen being dragged by five teens through the class while another shows a ball being thrown at his head, after which he angrily storms out of class.
In another scene, the teacher is mobbed near the blackboard as a group of students play traditional songs and dance around him in a threatening way.
College director Heinrich Himmer said: “We do not tolerate any violence or disrespectful behaviour in our institutions, not from teachers or students.
“That is why immediate consequences were taken. The teacher will be questioned, regardless of the fact that it was already announced that he will no longer be active in the coming year, and he can expect legal consequences.”
Mr Himmer said that “a separate disciplinary hearing” will take place for the students involved and that they will “receive the support of college psychologists”.
Woman 'slurps spilt drink' through straw on pub floor as drinks 'too expensive'
However, the reaction caused a huge public outcry in Austria after the videos were shared and discussed by dozens of newspapers.
An online petition is even calling for the dismissal of the entire school board, which has over 10,000 signatures so far.
Meanwhile, a spokesman for the far-right party Freedom Party of Austria (FPO) has blasted the school board for “abandoning its teachers”.
FPO education spokesman Maximilian Krauss said: “No teacher should have to put up with such misconduct - that it is even being discussed is absurd.”
Mr Krauss claimed that the situation in many Austrian institutions is so dire that “teachers even need to wear a bodycam these days” and that “security guards at certain schools are part of everyday life”.
He has proposed setting up “boot camps for violent students” to tackle the problem.
