A teenager who was attacked by a 25-year-old man was so badly injured he had to drink his meals through a straw.
Luke Todd of Shaw Road, Grantham, admitted assault occasioning actual bodily harm after punching the 17-year-old to the face at an address in Harrowby Lane, Grantham.
Paul Wood, prosecuting, said the trouble started when the victim told a joke which Todd thought was about him. When the teenager went outside Carr punched him in the face, knocking him to the ground.
The attack left the 17-year-old bleeding from the mouth. He returned home and his mother took him to Grantham Hospital when she saw his black eye, cut lip and badly swollen face.
The following day he went to Lincoln County Hospital where he had stitches to the inside and outside of his mouth. However, an x-ray revealed no broken bones.
Mr Wood said: “Because of what happened he had headaches for a number of days and had to have a liquidised diet because of the swelling to his face.”
Mr Wood told the court Todd attacked the teen after drinking nine pints of beer mixed with other spirits.
Rory Macmillan, defending, said Todd “was to a degree provoked” by the teenager as he threw the first punch. Todd retaliated some 10 seconds later.
Mr Macmillan added: “He regrets his actions and believes his actions were pathetic.”
The court heard Todd had sent a message of apology to the victim.
Todd was sentenced to an 18-month community order which includes 31 two-and-a-half hour sessions. He must pay £200 in compensation to the victim, £85 costs and a £60 surcharge.
Chairman of magistrates George Hoyles said: “You will have to learn in life you can’t go round clobbering people quite as much as you wish to sometimes.”