Having a second drink before getting behind the wheel of your car doubles your chance of being in a fatal crash.
This comes as safety organisations launch their christmas campaigns to cut down on drink driving. Instances in Fife have dropped by around 24-percent since a lower drink drive limit of 50mg per 100ml blood alcohol was introduced in Scotland last year.
Edmund King, president of the AA, said: "December is still the worst month for drink driving so we support the Think! campaign to highlight the problems and consequences of drunk driving.
"The Think! campaign is based around Increasing agreement that driving after drinking two drinks impairs your driving and is dangerous.
"The best way to avoid any second or third drink is not to have the first drink. Once drivers have their first alcoholic drink their good intentions of not drinking and driving often go out of the window. The best advice for drivers is don’t drink and the best advice for drinkers is don’t drive.
"There is truth in the slogan that ‘a second drink could double your chance of being in a fatal collision’ but often it is that first drink which leads to the second.
"With uncertainty about strength of drinks and size of glasses the best advice is to forget the legal limits and have none for the road."