At first glance it seems as if no one has turned up to meet June McCauley and his giant refrigerated truck. But, as he drives into the car park, the inert cars suddenly bristle with life. Arms shoot out from car windows, each brandishing a fistful of empty plastic bags.

Mr McCauley climbs out of the truck and starts unloading heavy crates of tomatoes, onions, potatoes, milk cartons and bread on to the hot tarmac.