Closed doors are our problem. Any one separated by a door cries. We also have too have our love sessions before we go too sleep. If not one or more will cry until we pay attention. Then things will settle down for the rest of the night. Mit's is the only one that does not cry, he gives me "wet willies". Believe me I would rather have the crying. There is no way you can sleep through a wet nose and a very load purr in the ear.