What are you doing, Hank? (video)

I needed to take a video of Hank doing this. He does it quite a bit - I think to attract attention or he's just bored with himself and entertaining himself as well. He goes after his dog tags and he is trying to get them and carry them in his mouth and I don't think he's really aware that they can't go anywhere. He's such a goof. ;) Care to explain his behavior, though? He also chases his own tail once in a while. Does this scream out "attention!"?

http://img.photobucket.com/albums/v9...h_CIMG0700.jpg