A drink-driving father who killed his only son in a car crash on the night before his seventh birthday has been jailed for two and half years.
William Robson, 34, sobbed and shook in the dock at Maidstone Crown Court as he was sentenced for killing his son Joshua after downing four pints of strong lager.
Robson drank four pints of strong lager before he crashed a friend's Vauxhall Vectra into a steel bollard at Ashford, Kent, the court was told at an earlier hearing on December 7.
Judge Andrew Patience said: "It was an act of madness to drive having drunk in that way. The sentence which I am going to pass on you cannot in any way compensate you or Joshua's mother or his family for his loss.
"No value can be placed upon a human life. To those who are bereaved, this loss is incalculable."
Joshua's mother Tracy Mahoney, 29, said afterwards the sentence was not long enough. Joshua died in hospital in the arms of his mother.
The boy and his eight-year-old sister Collette were in the back of the car when it crashed.
Robin Johnson, prosecuting, said the children were wearing seat-belts but Joshua seemed to have slipped his arm out of the shoulder strap, which left him secured only by the lap.
Collette, who suffered internal injuries, was transferred to Guy's Hospital, London.
Robson hung his head as he pleaded guilty to causing death by careless driving while having an excess of alcohol in his blood, and to driving without insurance.
Michael O'Sullivan, defending, said Robson, a machine operator, was grief-stricken by what had happened and would have to live with the consequences for the rest of his life. He added that the crash was "a tragedy for the child and mother that cannot be put into words."