Today one customer, in one of Leon’s restaurants, will win the gift of “free Leon for a year”.

The company said the gift initiative coincided with the birthday of co-founder John Vincent.

The healthy fast-food chain said it will pick a restaurant at random in the morning and that restaurant team will then pick a customer at random, during lunchtime (sometime between 12pm and 2pm), to win the year-long prize.

The company said: “All you need to do is come and visit us at lunchtime, confident in the knowledge that your chances of winning this are much better than they are of winning the lottery.

“We will also be giving away a free better brownie to every lunchtime visitor (well, until we run out of them, as our Dorset baker Honeybuns can only make so many of them).”