The French policeman stops his car and asks the gentleman if he has been drinking. With great difficulty, the Englishman openly admits that he has been drinking all day, that his daughter was married in the morning to a French man and that he drank champagne and a few bottles of wine at the reception and a quite few glasses of single malt thereafter.
Quite upset, the French policeman proceeds to test his breath for alcohol and asks the Englishman if he knows under French Law why he is going to be arrested.
The Englishman answers with humour, “No sir, I do not! But while we're asking questions, do you know that this is a British car and my wife is driving... on the other side!!”