Letter costs three Centenary Heights students their formal November 22, 2014 - 12:15PM Justin Liddell of Centenary Heights Stat High School, flanked by father Steven Liddell. Photo: Nev Madsen A run-in with a teacher has left three Toowoomba students locked out of their school formal. Justin Liddell and two of his Centenary Heights friends were suspended from attending their end-of-year celebrations after they wrote what Justin describes as an "honest" letter to their teacher. He said since starting at the school two years ago he had been unfairly treated by the teacher and chose to use this as an opportunity to let him know how he felt. Justin said he had achieved an A-record for behaviour during his time at the school. Justin's father Steve said the parents had lodged a formal complaint with the Department of Education on Thursday night after the suspension. He thought the principal had backed the teacher without considering there might be a bad relationship between this particular teacher and the students which had led to the incident. Read more of this article on The Chronicle website by clicking here.