Occasionally, there is a puppy who is housebroken and crate trained, but he's still having accidents all over the house! The puppy pees when:

1.   there is an over affectionate greetings
   

2.   the owners come home from work, 
   

3.   when they pet him, 
   

4.   when they have guests, 
   

5.   when puppy is excited, 
   

6.   when puppy is scolded, and 
   

7.   sometimes even when puppy's just given a simple command or a reward. 
   

Believe it or not, this is not a housetraining problem.  It has to do with some normal canine behavior patterns that you can and should deal with in a positive way.  This is submissive or excitement urination.

To rule out the possibility of this being a physical problem, you may  wish to have your veterinarian examine your dog for possible physical abnormalities pertaining to this problem.  Occasionally this same behaviour is the result of a urinary tract infection.

Excitement urination is the result of infant muscles that simply cannot hold their urine when the pup gets excited.  Your puppy's behavior may be partially excitement urination.   Your puppy can get so excited when he sees you that he temporarily loses control of his bladder.  The vast majority of dogs simply outgrow this problem as they become stronger and gain control of their muscles.

Submissive urination falls into a completely different category.  Dogs have several behaviors designed to reduce violence between them. When challenged, a submissive dog must display some or all of these behaviors to display  its lower status and to prevent an attack. Submissive urination is most commonly offered in this type of greeting.  By wetting, the dog is merely acknowledging the other dog's superiority

In order to understand this behavior, you must understand the language of dominance and submissiveness.  Young puppies learn this from their mother.  Gestures like averting eyes, rolling on their back, and urinating, are all used to express submissiveness.  In situations where a dog feels intimidated, the proper learned response for them is to elicit some submissive signal to show the person or other dog that they recognize their dominance.  Dogs are instinctively programmed to accept the authority of creatures (animal and human) that they consider to be superior to them. They seek the approval of their superiors and are eager to please them.  Many dog owners prefer a dog who is submissive to people and eager to please, and selective breeding has produced many domestic dogs with this characteristic.  As tough as Terriers are suppose to be the Norfolk, Norwich and Border Terriers are considerably softer than the rest of the Terrier Group. 

Some dogs are more submissive than others. Very submissive dogs, shy dogs that lack self-confidence and often young pups will urinate when in the presence of more dominant dogs and humans. It's their instinctive way of telling the superior "You are my Supreme Master. Your wish is my command. Please don't hurt me!"

The good news is that puppies usually outgrow this behavior as they mature.  Dogs who are naturally shy, insecure, extremely submissive, or who have been abused may continue to exhibit submission in this way even as adults.  It is generally an involuntary, subconscious reflex.  The dog isn't deliberately trying to do it. As a matter of fact, he may not even be aware that he's doing it at the time!

Many dog owners mistakenly believe that this type of urination is a housetraining problem, and try to correct it with discipline.  To their dismay and frustration, rather than improving, the dog's problem gets worse!  Because the message he's sending is misunderstood by the owner, the dog is caught in a vicious cycle - his instincts tell him to urinate to please his superior by showing submission.  But when he does, he is punished.  He then tries harder to please by urinating even more.  This results in more punishment, and still more urination.  After a time, the dog may become so confused and insecure that he urinates at the mere sight of a human being or another dog.

How to solve the problem   
Your task is to take the excitement and stress out of the periods that previously triggered submissive urination.  Get cooperation from all members of the family.  When you first get home, you can anticipate that the dog will get excited and urinate so you need to minimize the excitement.  Instead of an enthusiastic greeting to your dog, quietly walk in the door and go about your business.  Let him outside to pee as usual, but without any fanfare.  If you talk to him at all, just say "Hi Rover" in a calm, casual tone of voice.  Don't make eye contact with him or pet him. After he settles down, very gently crouch down to his level presenting to him sideways (this makes you very non-threatening), then calmly and quietly praise him and tell him he's good.  Be sure to tell your family and visitors to do the same.

Do everything you can to boost your dog's confidence.  As he becomes more confident, he may feel less of a need to display extreme submissive behavior:

1.   Positive reinforcement obedience training does wonders for a dog's confidence! An untrained dog  doesn't know how to communicate with humans or how to behave.  The trained dog understands what's expected of him, and the words you say to him.  He's confident because he has the tools with which to please his superiors.  Always encourage and PRAISE the dog for what it does right.  This helps to build self confidence and cements the bond between you and your pet.
   

2.   Socialization at training classes, dog daycare, at the park, or just going with you on errands and to visit friends can do wonders for your dog's confidence.  Have guests over who are willing to help out with this problem.
   

3.   Training classes are other fun ways to boost your dog's confidence using physical and mental stimulation as well as new human words to understand and obey.
   

4.   Incorporate basic obedience (Sit, Stay, Fetch, Come, etc.) into your daily life and when your dog obeys, he gains confidence through your praise.  Just don't overdo the praise (this can result in a puddle!).  A simple "Good boy" and gentle pat, under the chin instead of on the head, is enough.
   

5.   Minimize the occasions your dog makes you want to scold him; think about what your dog does that causes you to scold him.  For example, does he get into the trash, steal your children's toys or chew on your sneakers?  By simply putting a lid on the trash can or putting it into a closet and requiring your family to pick up after themselves, these situations can be eliminated.  The easier you make it for your dog to do what you want, the quicker he'll learn and his confidence will grown.  On the other hand, discipline, scolding and physical punishment will simply reduce his confidence and worsen your submissive urination problem.  
   

6.   If your pooch urinates in response to loud, angry scolding, instead of yelling at them when they do something wrong, try to deal with their inappropriate behavior in firm and constructive manner. A firm NO given consistently at wrongdoings will often suffice.
   

7.   Be careful not to physically dominate the dog.  Dogs, especially shy or submissive ones, are very sensitive to body language and tone of voice.  Bending over a dog is a "dominant" posture that may provoke an accident. Instead, get down to your dog's level by crouching or kneeling, preferably at his side rather than head-on.  
   

8.   If your dog urinates out of excitement when you return home and greet it, or if unfamiliars greet it, try to downplay the greeting by staying calm and saying hello or even ignoring it for the first few minutes until it calms down. Ask your friends to do this as well.
   

9.   These dogs are often intimidated by direct eye contact as well.  Look at your dog's face without looking directly into his eyes, and only for very short periods.
   

10.   Limiting your dog's intake of water can help it gain control...hot weather permitting.  If you are expecting guests, take your dog for a walk and get his bladder emptied ahead of time, and restrict water consumption for an hour before your guests are to arrive.
    

11.   When speaking to your dog, use a calm, confident, moderate tone of voice.  Avoid very high or low extremes in pitch.  Don't baby talk to your dog either.  These tones can create excitement that results in submissive urination.
    

Don't scold or punish your dog for urinating submissively.  It will only make things worse.  They can't be held responsible for something they don't understand or even know they’re doing.  Instead, use these methods to get to the root of the matter: basic insecurity and lack of confidence.  When progress is made in these areas, submissive urination often disappears on its own.  How long will it take?  Every dog is different and it's impossible to say for sure.  With most dogs, following our directions will show a noticeable difference within a short time. Solving the problem altogether depends on your hard work, patience, consistency and willingness to stick with it. Good luck!

Click for an article by the Dumb Friends League on Submissive and Excitement Urination