evidence: The extent of violence in Northern Ireland’s schools has been laid bare in a shock new survey. [...] Chair of the Union, Denise Walker said: "Everyone expects and is entitled to go to work free from the threat of physical violence but if you work in one of Northern Ireland’s schools in a support role, you could be one of the 51% who have been subjected to a physical incident at work. [...] Vice-chair of the Union, Maxine Murphy-Higgins added: "The figures in this survey are truly shocking. Just over 55% of primary school teachers have been assaulted at work while almost 90% of special school teachers have been assaulted.