According to www.dogbreedinfo.com, the Miniature Pinscher is not related to the Doberman Pinscher, and is in fact an older breed than the Doberman. Developed in Germany from terrier breeds, including the German Pinscher, the Miniature Pinscher's original use was in hunting rats to keep the population down in the stables that it frequented. Italian Greyhound blood may have been added to produce such a tiny, high stepping-dog. The word "Pinscher" means "terrier" in German. Today the MinPin's high spirit and bright personality make him a charming companion. Some of the Miniature Pinscher's talents are competitive obedience, watchdogging, and agility. The Miniature Pinscher is a hardy little fellow that is very demanding and headstrong. This proud, overly courageous dog likes to bark. They are loyal to their masters, spirited and alert, with high energy. Intelligent, lively and brave, it is a big dog in a little dog's body. The Miniature Pinscher is moderately protective. Some can be very aggressive with other dogs, but they are generally good with other pets and children provided the children do not pester. They are rather suspicious towards strangers, but their behavior depends entirely upon how they were brought up as young pups. Don't spoil this breed too much or the dog may become a tyrant. The Miniature Pinscher can learn extremely well and wants very much to do so. It is certainly beneficial for its socialization to take the dog to puppy courses where it can meet other dogs and people. You will be amazed at how fast the Miniature Pinscher understands and obeys you. Pay particular attention when housebreaking this little Pinscher, since a little puddle from such a small dog can easily be overlooked; the dog may get the idea that you are happy to accept it fulfilling its natural needs indoors. The Miniature Pinscher is often called "King Of The Toys." Beware, this little dog will chew small objects and may choke on them. Do not overfeed this breed. They are a remarkably healthy breed and have an expected life span of 15 or more years.