University of Edinburgh students were told to shush as they chanted "pay your workers" at a graduation ceremony in a show of solidarity with a marking and assessment boycott from staff.<br /><br />"Please remember that this is a special day for lots of people... be respectful," a university staff member said before Edinburgh College of Art graduates booed on Tuesday, 11 July.<br /><br />The boycott is part of action by University and College Union (UCU) members over pay and conditions.<br /><br />Union members are refusing to mark exams and assessments until employers make an improved offer.