Its not the people who get flooded who make the mistakes, its the councils, builders, planners , land agents, who come before them, make their money/mark and disappear. I know of one of my workmates who bought a house near a creek and is now worried it is filling with water, She came to Renmark when the creek had, for the first time in my lifetime and possible my fathers, dried up. Until now it had been used as an irrigation supply line. She thought it had always been dry. I asked her "How do you think it got there in the first place?" It seems people have been so programemed to the million of years senario , they can't accept that anything can happen overnight.