An attack victim suffered permanent hearing problems and lost his sense of taste and smell after suffering serious head injuries when he was punched outside a pub.
Glen McGlinchey, 40, was jailed for 12 months over the attack on the 46-year-old victim at the Old Kings Arms, Horsforth.
McGlinchey handed himself into police five days after the attack when he recognised himself from a CCTV image used in an appeal for information published by the Yorkshire Evening Post.
McGlinchey told officers he had no idea he had left the victim with such severe injuries after striking him a single blow in the early hours of January 5 this year.
Leeds Crown Court heard the victim had tried to act as a peacemaker earlier in the evening when trouble flared among a group of people McGlinchey was with.
Robert Galley, prosecuting, said the situation appeared to calm down and the victim had a drink with McGlinchey during the night.
McGlinchey approached the victim and punched him after he went outside to have a cigarette. He was knocked down and hit his head on a step.
The victim was taken by ambulance to Leeds General Infirmary but was released in the early hours of the morning and returned home.
He was returned to hospital later that day after his daughter was unable to wake him up. He had suffered a fractured skull
He also had bone broken in his ear and has been unable to hear properly. The court heard it was unlikely that the victim’s sense of taste and smell would ever return.
McGlinchey, of Bradford Road, Leeds, pleaded guilty to unlawful wounding.
Sajid Majid, mitigating, said McGlinchey had no previous convictions and described his client as a hard working business owner.
The lawyer said McGlinchey had behaved out of character. Mr Majid said McGlinchey had explained the punch as a “pre-emptive strike” as he thought he was going to be attacked by the victim.
Recorder Timothy Hirst said: “I form the conclusion that the level of threat used outside the public house was relatively low and there was no need for you to strike out at this particular time.
“It is necessary in my judgement to reflect the anger that is going to be felt by the victim and his family by depriving you of your liberty.”