You look at a herd of cattle and well they all look the same... but they know. They all have an individual personality and those personalities change from day to day. They can have their grumpy days and their happy days and their serene days. But it's unpredictable. You can't be off in outer space when you're dealing with animals.
Second there are two problems with respect to mobile homes in particular. One is we obviously don't want to put them in a flood plain because if there's another flood you're going to lose the mobile home.