A young father who punched a 50-year-old man unconscious outside a Perth service station, in front of the victim's daughters, has been jailed for more than two years.
Dylan Edward Ghilardi, 23, was convicted after a trial of causing grievous bodily harm to Kenneth Akers in April 2013 after both men had been drinking separately.
The Perth District Court heard on Wednesday that derogatory remarks were made about Mr Akers' daughters, aged 16 and 19, while Ghilardi and his friends were driving away, prompting him to shout out to them.
In sentencing, Judge Anthony Derrick said Ghilardi was looking for a fight when he got out of the car and punched Mr Akers unconscious, causing him to hit his head on the ground and inflicting a brain injury, requiring him to spend six weeks in hospital.
"You got out of the car because you took offence to the fact that Mr Akers had the temerity to respond to the derogatory remark that either you or one of your group had made about his daughters," he said.
Judge Derrick rejected claims that Ghilardi had acted in self-defence.
He said the victim suffered injuries that affected his mobility, memory and personality, and forced him to spend time in psychiatric care.
"I'm not satisfied that you have fully accepted responsibility for your conduct," Judge Derrick said.
Ghilardi, who was acquitted of unlawful assault occasioning bodily harm against a different complainant stemming from the same incident, was sentenced to two-and-a-half years jail.
He will be eligible for parole after serving 15 months.
