A “menace” driver downed more than four bottles of wine and then ran down his girlfriend with a two-year-old in the back seat of the car.
Scott Law, 33, of Flat Tops, Normanby by Spital has been jailed for nine months and banned from driving for six years.
Lincoln Crown Court heard how he got behind the wheel of the family car after an argument with partner Suzanne Scawthon, ignored the safety of the child and drove straight at Miss Scawthon knocking her to the ground as she walked away.
Miss Scawthon escaped with minor grazing and then drove off with Law.
But a passer-by who saw the incident in The Belt Road, Gainsborough, took down their registration number and called the police.
Prosecuting Phil Howes said: “The car was seen to veer erratically across the road. Initially the woman was driving with Law in the front passenger seat. Witnesses describe them as arguing emphatically. Miss Scawthon got out and was quite upset and angry.
“Law was bare-chested and was seen to urinate against the side of the car. He was unsteady on his feet.
“He then got into the driver’s seat. Miss Scawthon was walking away up the road. Another driver stopped to see if she was ok and she said she was fine.
“She continued to walk away and didn’t seem to notice when Law drove up behind her. He was accelerating and braking and then drove into the back of her. She was knocked forward onto the ground.”
Police found Miss Scawthon and the boy sitting in the vehicle outside of their home and Law drunk in the house.
Law admitted he has defective eye sight and said he could not drive. He was breath tested and found to be more than twice the legal limit.
He admitted charges of dangerous driving, drink driving and driving without a licence and without insurance.
Judge Sean Morris told him: “You were driving up the road unable to see properly and full of drink. You are a menace when it comes to cars. It is time you learned your lesson. You can sit in prison and think about your life and what you have done.”
Defending Sunil Khanna said Law turned to alcohol as a result of depression caused after he was turned down for jobs because of his poor eye sight.
He said: “He began to drink more and more and he was heavily drunk on this day. He had drunk between four and five bottles of wine.”
Mr Khanna said Law was trying to catch up with his partner but his poor eye sight and drunken state meant he misjudged the distance and knocked her down.