Well, any time there's a change in behaviour like this, it's wise to consider a vet check up, to rule out neurological issues, Cushings disease, etc.
Is he a bit nervous, or prone to stress? I have a Rottie who is...she will lick her feet, chops, furniture etc when she is stressed. If there's nothing medically wrong, consider the stress (or boredom) angle, and go from there.
__________________
Carina
Cooper The WonderDog
Daphne The Destructo-Rott
|