jockey's lawyer lets fly at Gai Waterhouse The lawyer for former jockey Allan Robinson has attacked Gai Waterhouse for being a "snob"" and a ""failed actress"" after the champion trainer called his client a ""trumped up little jockey"" during an explosive NSW Racing stewards" hearing in Sydney on Monday. Lawyer Chris Murphy claimed that superior airs and graces exhibited by the Waterhouse clan, including Waterhouse and her bookmaker son Tom, made him sick. Allan Robinson: the jockey is claimed to have been involved in "Chinese whispers." He then launched his own verbal attack on Gai Waterhouse, telling ABC Radio: ""Gai is a failed actress who married a perjurer."" His less-than-flattering assessment of Waterhouse came as Robinson agreed to front the racing inquiry into allegations raised by prominent businessman John Singleton that there was knowledge among a group of people that his horse More Joyous could not win last month's All Aged Stakes. Robinson is alleged to have engaged in Chinese whispers with brothel owner Eddie Hayson and rugby league legend Andrew Johns over a brief conversation Johns had with Tom Waterhouse. Gai Waterhouse: called Robinson a "trumped up little jockey." Tom Waterhouse claims he merely said he did not like three horses, one of which was More Joyous. Robinson, a former jockey turned excavator driver, did not appear at the inquiry on Monday but contacted chief steward Ray ""The Hat"" Murrihy on Tuesday to say that he had changed his mind and he would now give evidence. Mr Murrihy said that he hoped that Hayson and Johns would also have a change of heart about giving evidence before the inquiry. ""They have until the end of the week to indicate they will co-operate," Mr Murrihy told Fairfax Media. "If they continue to decline the stewards will consider what sanctions may be given," he said. John Singleton: alleged Robinson told him More Joyous would run poorly after a tip off from Andrew Johns. Mr Murrihy said that stewards were dealing with Johns and Hayson via their lawyers. Mr Murrihy said that the inquiry would move swiftly to take their evidence. We want to move quickly, as it is unpleasant for all the parties and for racing in NSW. Before Murphy made the call to confirm Robinson's appearance at the inquiry, he went on the attack on ABC Radio. ""The snobbery, you know the "racing's royal family" accolades they shower upon themselves, they turn me sick,"" Murphy said of the Waterhouse family. Murphy claimed that Robinson had driven all over NSW when he was a jockey for trainers like Mrs Waterhouse. ""He [Robinson] punctured his lung, he broke his neck, and eventually he broke his back and suffered a brain injury, and for that, for a trainer to look down on him. Even the word "little" jockey, as though there's some superior form of life that trains horses,"" Murphy said. Murphy claimed Johns, who did not appear at the inquiry on Monday, held the key to what really happened before the All Aged Stakes.