All right, I confess. Down here in France, I was taken in by a report that the local sandy beach was to be made all pebbles to resist erosion, 300,000 tonnes of pebbles being imported from about 600 miles away from the purpose. The fact that the Med is effectively non-tidal and there are no local currents which have ever eroded anything did not enter my thoughts. Well,it's just the kind of daft idea that the local council, ever keen on wasting money, would come up with!