Dogs have this entire problem and may be it also create problem to you.
Barking
Separation anxiety
Digging
Destructive chewing
Disobedience
Fear and phobia

Barking:
They are some dogs who are barking all the time without any reason which will create problem to you as well as it will disturb to your neighbors also. If you will not do something with this problems then your neighbor will complaint you about this and you will be in trouble. Actually most of the time dog will bark when he will stay alone in the house and barking is normal for dogs. If they bark so often then it will become problem.

Unwanted barking is one of the most common behavior problems in dogs. There are many causes of unwanted barking, and you must determine why your dog is barking.

Separation anxiety:
Dog is best companion for his owner and they built certain bond between them. In future dog will become so dependent on his owner. Because of this if you leave him for some minute then dog separation anxiety will develop.

Digging:
Digging is a behavior of dog and some dog love to dig holes. Reason for this will depend on the breed and the situation.

Destructive chewing:
Mostly dogs have this problem for three reason, attention or boredom and teething. Make sure to provide the teething puppy with lots of chewable toys.

Disobedience:
Most of the time, dogs disobey their owners because they don’t understand what they are commanding. Actually main problem is that they don’t understand human languages. You need to train your dog many times. So, that he can understand you. You can go for obedience training. Obedience training should start when the dog is still a puppy and be reinforced throughout the years.

Fear and phobia:
Phobias can not be cured they can only be managed but fears can be worked with and possibly get better. Fears usually develop from lack of socialization as a puppy. If a dog is not exposed to different sounds, environments and people it is easy for them to have a fear of the unknown. After your dog is immunized you should do an exercise. When the puppy was very young, phobias develop from some sort of trauma and then the fear becomes a learned behavior and finally the fear turns in to a phobia.