Upset and depressed, a Radstock man downed two thirds of a bottle of whiskey before getting into his car and being involved in a collision with another vehicle.
Jamie Shearer was taken to hospital with serious injuries, and a blood sample taken by doctors showed he was more than twice the legal drink-drive limit.
The 35-year-old, of Frome Old Road, pleaded guilty to being in charge of a vehicle with excess alcohol on an unclassified road at Castle Hill, Nunney, on April 25.
South Somerset magistrates were told that on the day in question there was a collision between two vehicles at 10pm as Shearer was driving home.
As a result of the accident the defendant was taken to hospital with a serious liver injury and the following morning at 2am a sample of blood was obtained.
The sample showed a reading of 164mg of alcohol in 100ml of blood. The legal limit is 80mg.
Shearer was interviewed the following month and admitted he had drunk some whiskey before getting into his car.
Defending himself, Shearer told the court that he was depressed and on the night in question returned to his office to have a drink and was in "quite a bad way".
"I don't know why I got in the car to go home, but I did, and I have not had a drink since then," he said.
The magistrates disqualified Shearer from driving for three months and fined him £73 with £30 towards costs and a £15 victim surcharge.