Cage rage:

You cage your pet for no reason for indiscriminately long periods. And what do you expect? First of all, anger. Then, the

feeling in your Dog that the cage belongs to him. This feeling comes out of caging your pet and then forgetting all about

him. This angers him and he flares up. Further, he feels trapped and immobile when the whole world is doing things and

happily too! So, he stays in his cage and fights the way he knows best.

http://dogtrainingmastery.com/Free_Dog_Training/dog-obedience-training.htm
http://top-secrets-online.com/Dog_Training/dog-psychology.htm