Sorry to disagree with people, but the French onion sellers did come across to England selling strings of onions. They rode bikes and they wore berets - this was in the late 50's and a double string of onions was 6 shillings. We couldn't afford that much and persuaded one to sell us a single bunch for three shillings (15 pence) - My housekeeping money for food for 2 adults and a baby at that time was £3 per week so 6 shillings (30 pence) was expensive, considering that mince beef and Cod, were less than 2 shillings (10 pence) a pound. I never recall one of them saying "sacre bleu"!