A mix-up over wine led to a husband driving while above the alcohol limit.
Mark Harrison believed there was far more mixer in a glass of white wine which had been prepared for him by his wife.
Harrison, 46, of Preston Old Road, Marton, pleaded guilty to driving with excess alcohol.
He was banned from the road for 12 months, fined £110 with £85 costs and ordered to pay a £150 court charge plus £20 victims’ surcharge by Blackpool magistrates.
Malcolm Isherwood, prosecuting, said police stopped Harrison as he drive a Ford Focus on the resort’s Park Road on June 20 at 10.45pm.
There was no suggestion there was any fault in his driving, but when an officer spoke to Harrison he could smell drink.
A breath test showed 54 microgrammes of alcohol in his body - 35 is the limit.
Robert Castle, defending, said his client, who had no previous convictions, had driven for many years without incident.
Harrison’s wife had prepared him a drink of white wine with a mixer in it and the defendant had believed there was far more mixer in the drink than there was.
He had lost his job because of the offence and there was a difficult time ahead for him and his family.