A moment of madness or a very wise move, time will tell but.... its happened!
During a trip south in our faithful caravan we volunteered to look after several of the grandchildren. Not all at once but a dribble of one-at-a-time followed by swift changeovers of child and their baggage. It proved to be the undoing as we enjoyed it so much we felt a need to base ourselves occasionally,further south. So, park the caravan in a field for an extended stay? That would have been cheaper, but no, we fell for a static white box parked in a tranquil park under a particularly pretty part of the South-downs.