Chewing the deck...

[KYS]

How old is your dog?
If he is under two,
than I would say digging and Chewing or normal signs
of the horrible adolesent stage.
If he is older, I think you will have a harder time
trying to change his behavior.

Their should be a lot of information on dog behavior as
Rachel said on the internet, or you can go to your local library.
(bored dogs tend to be destructive as well as dogs
that suffer from separation anxiety)
I did not research the web sites below, but
you might look at them and see if any of them
our helpful.

http://www.uwsp.edu/psych/dog/lib-prob.htm#chew

http://www.ddfl.org/tips.htm#dog

http://www.sfspca.org/behavior/dog_l..._library.shtml

http://www.veterinarypartner.com/Con...?P=C&C=106&S=0