Chasing, whether it be cats, cars or even people, is something most dogs love to do. Dogs generally see this as something fun to do, and don’t mean any harm by it, but, the fact is, that by chasing they invoke fear in others and can cause unintentional accidents.
While German Shepherds may not inspire the ill-placed fear of such breeds as Rottweilers and Pit Bulls, they do land on many banned breed lists.
You should waste no time starting the process of housebreaking your new dog — once you have him home, you are ready to begin. One that can only lead to confusion for the dog later on is giving your new dog a little time to get to know the family and the house before laying down the law. Truthfully, you cannot expect a dog who has been allowed to have full run of the house to suddenly accept new rules and adapt quickly to housebreaking.