Mr Jennens, who had been the sole carer for his mother for ten years, denies manslaughter.According to a 999 transcript read out at start of the trial, Mr Jennens is reported to have told operators: “After being told I’m stupid for trying to sort Christmas dinner out I just lost it and went to chuck her out of the door.”Wolverhampton Crown Court heard how Mr Jennens lost his temper with his mother on Christmas Eve 2015.Rachel Brand QC, prosecuting, said: “They argued about potatoes. He got angry, threw a writing pad across the table. He said ‘that is the last time you speak to me like that’. They argued about potatoes. He got angry… he said ‘that is the last time you speak to me like that’Rachel Brand QC Want the best of The Telegraph direct to your email and WhatsApp? Sign up to our free twice-daily Front Page newsletter and new audio briefings. Mark Jennens and his mother had rowed about potatoes, the court heardCredit:Alamy UPDATE: On July 17, after this article was published, Mark Jennens was found not guilty of manslaughter at Wolverhampton Crown Court.A man killed his mother after she criticised his efforts at making Christmas dinner, a court heard.Mark Jennens, 40, tried to throw 78-year-old Hazel Jennens out of a house they shared in a row over potatoes on Christmas Eve, jurors were told.He is alleged to have frogmarched his mother, who had osteoporosis and lung cancer, to the door before pushing her to the floor.Ms Jennens, of Brierley Hill, Dudley, West Midlands, fractured her hip and later died from bronchopneumonia in hospital. “She responded to that by leaning forward and gritting her teeth. He panicked, went to the arm chair and picked her up and frogmarched her to the door to get her away from him.”His intention was to put her outside and slam the door. He held her arms, then she was on the floor.”After undergoing surgery at Russells Hall Hospital, she began making a recovery, but on January 18 she fell unwell and died two days later at the hospital.”They have an argument and in the course of it he pushes or throws her to the floor.” Ms Brand added: “A fractured hip led to her being in hospital. It was that which caused the need for her to have surgery, to the risk of respiratory problems, bronchopneumonia which led to her death.”A cascade of events all led from a fractured hip, which she suffered at her son’s hands.”The court heard that Mr Jennens had been taking antidepressants at the time of the incident. The trial continues.