>The tests get in the way. Because my design does not have low coupling, I end up with tests that also do not have low coupling. This means that if I change the

>The tests get in the way. Because my design does not have low coupling, I end up with tests that also do not have low coupling. This means that if I change the behavior of how class <x> works, I often have to fix tests for other classes. At this point you should be realizing your code is untestable and needs to be refactored.