I just came across a fantastic quote by Dr Ed Bailey regarding behaviour problems in dogs, that matches my philosophy perfectly.
"Behaviour problems avoided are problems that don't need to be fixed. In the case of dogs, most behaviour problems are created, or at least abetted initially by choice of parents and more often by mistakes made during the pup's first 12 weeks of life".
There's two categories of dog behavioural problems that I'm not going to really address.
The first is the "crazy" dog. This is really rare. I was asked to take one many years ago by a well respected working dog breeder, who would have otherwise put the puppy down. There wasn't much we could do with her but love her and take care of her basic needs. We were very fortunate that she was harmless and lots of fun to watch. Our kids adored her. After all the years she was with us I still couldn't manage to teach her to "come" when called.
The second is the expression of a trait that has been bred into a breed over centuries. Some dogs are supposed to bark, some are supposed to herd etc. Breeders have gone to great lengths to make these characteristics distinctive for a particular breed. If a trait is inconvenient for a family's modern lifestyle, then they would be best to avoid the breed rather than hoping for a miracle!
The third category is the one that we can influence the most. It involves a puppy missing important education or conditioning during the critical learning period. It is of upmost importance to raise dogs without behavioural problems. Biting and resource guarding are probably the two most common behavioural problems in puppies, so these are two I am going to consider carefully and
hopefully come up with some workable material for you.