The UK's trade union movement chief has told Theresa May to "stop playing to the bad boys at the back of the class" over Brexit and "start listening".   Frances O'Grady said she did not get the workers' rights guarantees she wanted in a meeting with the PM. The UK's most senior union leaders met Mrs May to urge her to rule out a "no deal" Brexit and extend negotiations. Mrs May is seeking support for her Brexit deal ahead of a crucial Commons vote on Tuesday. Labour leader Jeremy Corbyn has refused to join the talks until Mrs May rules out the UK leaving the EU with no deal, which he says would bring "chaos" to the country. The UK is due to leave the EU at 23:00 GMT on 29 March. Mrs May met Ms O'Grady, Unite leader Len McCluskey, Tim Roache of the GMB and Dave Prentis of Unison at Downing Street on Thursday. TUC General Secretary Ms O'Grady said workers were worried about their jobs and needed reassurances about their future. "We have a prime minister on a temporary contract - she cannot bind the hands of a future prime minister," she said. "People wanting her job are on record as saying Brexit is an opportunity to reduce workers' rights. "The prime minister, frankly, has to stop playing to the bad boys at the back of the class and start listening to where I think Parliament is, which is wanting no deal off the table and more time for genuine talks to take place." Please upgrade your browser Unite union leader Mr McCluskey, a close ally of Jeremy Corbyn, said he was "not full of optimism" after his meeting with Mrs May. But he said the talks had been a chance to "re-emphasise" that a no-deal Brexit would be "disastrous". "Is this just a PR stunt for the media… or this a genuine attempt to see if we can talk about issues that matter to us?," he said. "Warm words are one thing but action is needed." He said a nine-month delay to Article 50 - the process taking the UK out of the EU at the end of March - would be "too long", but he would like an extension of three months. And he said Mr Corbyn was "correct" not to hold Brexit talks with Theresa May because leaders from other parties, such as the SNP and the Lib Dems, had been made to look "rather stupid" for doing so. It was different for union leaders, he added. AFP.