When ever I take my two older rats out all they do is sleep and don't interact with me. Do you think that they are extremely bored or that they are just old. They are 2 and they the pair has a SCN with two hammocks two huts and some apple wood sticks. Also they come to say hi when they are in their cage, but not out. If you do think that they are bored what can i do to entertain them.