Your puppy is just being a ……puppy! Sometimes the art of pet parenting is like the TV show Survivor–Outwit, Outsmart, Outlast.
Be diligent in cleaning up after your puppy poo’s. Do not give him the chance to play with or eat poo. Try placing the puppy on a leash when you take him outside to relieve himself, and do not allow him to inspect his poo. Distract him from by calling him to you, and when he responds appropriately, reward him with a treat and verbal encouragement (go crazy and act like he is the BEST PUPPY ON THE PLANET!) and then take him inside before you go back to pick it up.
If he hates poo’ing on the leash this is where the “Outlast” portion of the program comes into play. You just have to wander around the yard with him until he does it.
Some have found that adding meat tenderizer or natural additives to the puppy’s food makes a big difference, since these additives cause the stool to have a particularly unappealing smell that will discourage him from eating it. If you cannot immediately clean up the stool, or if there are some old stool piles in your yard, you can spray it with hot pepper sauce or mouth wash. It is more effective to just clean up after the puppy.
A good resource for puppy training is The Complete Idiots Guide to Dog Training. You can check it out of your local library. Good luck!!
Amy, this is resource guarding and it is a strong instinct in some dogs — and has nothing to do with the amount of food or water the dog receives. You MUST go find a trainer (or 2, 3, 4). Yes, start with your vet’s recommendations, but don’t stop there. Find a local dog club and ask them for recommendations for a trainer that uses “positive reinforcement” techniques only. Any other kind of training will lead to more problems as the dog gets older. And the first trainer you try may not be the right trainer for your family, and your dog — so that is why you need to keep on going until you find the trainer that will really work for you, your son, and your dog.
Be sure your children are involved in the training of the dog. Find a trainer that will also work with your son. A 6 year old will not be responsible for training the dog, but he has to understand what not to do, and how to behave with the pup.
In the mean time – LEAVE NOTHING IN THE DOG’S REACH THAT CAN BE GUARDED! This means no food left around. Your son can not walk around with a cookie, a juice box, etc. No bags of chips left on coffee tables. If he has nothing to hoard/guard, he won’t be biting. In all likelihood if you don’t learn how to work with your puppy to reverse this behavior now he will start guarding other things — toys, his bed, his favorite place on the sofa, etc. And be sure to have him neutered when he turns 6 months old – you will avoid another whole set of problems if you do this.
It took me 18 months and 4 trainers to finally have a dog that wasn’t biting me or my husband when he disagreed about who should be on the bed at night. But once we understood each other, I had 12 years with the best dog in the world. Truly.