A Judge said that a defendant was lucky his victim didn't suffer more serious injuries following a punch, or he may have been charged with manslaughter.
Sharn Kirkwood had been drinking with his friends. They were outside a Whanganui McDonald's when an altercation erupted at 2.30am.
Kirkwood approached the complainant from behind, swinging his arm and landing a punch flush on the side of his face.
Judge Chris Sygrove said the force was so strong that the victim was immediately knocked out cold and hit a small brick berm when he fell to the ground.
"He suffered facial injuries and was required to be taken to the hospital in an ambulance for medical treatment," Judge Sygrove said.