| Re: Dog suddenly gone crazy...or has he?
ok the first week he was scared and nervous and he didn't know you and he missed his mother and littermates.... and now his colors are showing as he gets more comfortable....
you do not mention the breed but some breeds are very very mouthy..... retrievers and sporting breeds in particular are known for mouthiness .... they were bred to retrieve and have things in their mouth..... here is the article I give my puppy people about biting and chewing.....
Biting and Chewing
You have decided to bring home a wonderful new family member. This family member also just happens to be a retriever. So what? You ask….
Most every breed has a purpose, or had a purpose. Herding dogs herd and will circle and herd everything from chickens and children to cats. They will try to herd cars as they go down your street and thus they are the breeds most often killed by being hit. Many working dogs cart and pull things, Newfoundland’s have been known to try and rescue children playing in water even when they are not drowning, they are hardwired to do so. Hounds have their noses to the ground and track. Try getting a hounds attention when they have picked up a scent that they are following, good luck! Sporting dogs, your pointers, setters, spaniels and retrievers, were bred to go out into the woods, fields and streams and bring home game.
So what does this have to do with chewing and biting? Well a couple of things. Flat Coated Retrievers were a family gun dog. This means that their job was to go out with the “man of the house” and bring home upland game for dinner. That having been said the FCR had to have a great ability to mark where the duck falls, a good scenting skill to find the duck, and a very soft mouth so he/she could return to the duck to the owner without damage to the bird. This means that FCR’s and other retrievers are very very mouthy dogs. | 
