A group of friends celebrating during the Monaco Grand Prix ran up a bill of 14,340 euros at Coya, an establishment in Fontvieille run by SBM, Monaco Criminal Court was told.

At the end of the evening the two bank cards proffered to pay for the meal and a Jeroboam of Crystal champagne (9,190 euros) failed to work.

Worse than that, suspecting that her companion had been flirting with her, one of the female guests struck a barmaid over the head with the empty champagne bottle, sending her to hospital.

The tribunal decided to send a strong signal that this type of behaviour is not acceptable and the defendant was sentenced to one month in jail.

FILE PHOTO: Coya in a peaceful moment