ya i get Romulus so excited we play fight forever, i've got him going so much that his mouth was bleeding from trying to bite the fuck out of me and bitting down on toys and shit... the funniest is when he gets running fit i yell out GO GO GO and he'll sprint out into the living room jump up on the couches back to the master bedroom and all over again... he is fucking nutz.
I love it! mine does the same thing- he'll tear around the house, its so funny!