I agree that there should be some protocol in effect for flying at a public. The parks I fly at have these in place and the public is used to see me and others there flying. There are always going to be horror stories of people getting hurt with models. Yes they are dangerous. We all know it and we accept the risks. These risks are real no matter where you fly and not all parks are suited for flying large models. But, with proper planning and training model flying in a public area can be done safely.