If you can't keep your dog off the furniture, it's probably your fault. This is almost always a people problem. Excessive Barking Barking is not a problem. Excessive barking is, and unless you live in an isolated area and don't mind listening to repetitive, endless yapping, the problem has to be solved for the sake of you and your neighbors. The problem may be caused by a variety of reasons like improper confinement, tethering a dog inside or out, crating - especially a hyperactive dog, loud noises like power mowers and firecrackers, lack of exercise, hunger, genetics and the temperament of the dog.
Solutions depend on the cause.
There are bad breeders. That's why it is always wise to know the reputation of the breeder and go out of your way to obtain your dog from a good one. If you are getting your dog from any other source - a pet store, shelter or private owner, remember Uncle Matty's personality test. And of course, abusive human behavior can most certainly, create an aggressive dog. When aggression rears its ugly head, don't delay finding out the cause and an appropriate solution.