During sentencing at Chelmsford Crown Court, Hennigan launched a foul-mouthed tirade at Judge Patricia Lynch QC, saying that she was a 'bit of a c***'.
In response the judge said: 'You are a bit of a c*** yourself'.
Hennigan shouted back: 'Go f*** yourself, to which the judge replied, 'you too'.
Hennigan, of Harlow, Essex, then banged on the glass panel of the dock, performed a Nazi salute and twice shouted 'Sieg
Heil' before starting to sing 'Jews gas them all....'
Speaking in a measured tone, Judge Lynch said: 'We are all really impressed. Take him down.'