Frank Skinner has revealed he was pulled over by police and asked to take a breath-test - despite not having had a drop of alcohol in 25 years.
The comedian and Absolute Radio presenter said he was stopped by police while driving over Tower Bridge in London.
He was pulled over after police suspected him of speeding.
Speaking of the moment he was asked to take the breath-test, Skinner said: "I thought, I've never been more confident of passing a test in my life."
The police officer asked if he had been drinking that evening and he replied: "I can tell you now, I haven't had a drink since September 24, 1986."
The comic added: "He just looked at me in disbelief."
He conceded that he had a nagging concern about the breath-test, saying: "I think it's because, even though I haven't had a drink since then, I've never felt fully sober since."
Skinner presents a Saturday morning show for Absolute.
He said he was allowed to keen the tube he blew into as a keepsake.
Copyright © Press Association 2011