That is submissive urination. It usually passes before his present age, but I would
suggest your husband not greet him immediately when he comes in. Wait a few minutes, until he calms down. Never, ever scold him for doing this. It will only make a submissive puppy worse. If he has been strongly disciplined by your husband, then that could be a contributing factor. If not, then it is simply submissive urination that you are dealing with. I would suggest using belly bands when your husband is around and I expect he will outgrow it. Submissive puppies have sensitive little personalities and do take a gentle hand to help them build confidence. They need someone to help them build confidence in themselves, so they aren't fearful.
You might read this earlier thread and also do some google research on the subject of submissive urination:
http://www.yorkietalk.com/forums/gen...urination.html