 water in them and they dehydrate, they go down, then you've got a problem. You've got to understand these things. You've got to understand what it means when you get tests back and certain tests are going to come back negative. Does that mean the end of the case? Does that mean, well, the person can't be hurt? What if all the tests come back negative? What if you have only one positive finding? You've got to understand what that positive finding means.