In Arizona, when a river bottom has no water in it, we call it a river. When a river bottom has water in it, we call it a flood. Continuing on with this brilliant thinking, the road engineers build roads which cross through the rivers. So when it rains and the river actually has water in it, people in their cars try to cross it even though it can get very deep for a short period of time. Needless to say, the various rescue agencies get busy pulling people off their cars by rope or using helicopters to pull people off their cars.
The cities have passed ordinances requiring payment if you are rescued from a flood in the event you drove into it thinking your car was actually amphibious. I guess the point is, stupid people do stupid things and sometimes you wonder if maybe on some occassions we should not look for these people..........