On the other hand, negative reinforcement is an older technique that basically uses punishment based on the idea that the dog will remember better what it is not supposed to do when it will be potentially be harmed as a result. Negative reinforcement uses yelling, choke chains, confinement, direct harm, electric shock, and electric fences. Men therefore have to be obeyed and would need as much cooperation from the dog similar to how the dog will respond to a pack leader in the wild. In spite of all these, dogs are predators. They have always been and even behind centuries of domestication, they have not totally lost the instinct. They respect hierarchy. The Pyrenean Mountain Dog Fearless, fiercely loyal and obedient, the Pyrenean will sacrifice itself for the family if needed. The Rottweiler Large, black, very powerful, reliable, and self-assured, the Rott is among the list of most popular guard dogs. Because of its size, this dog has to be trained and socialized early on due to its assertive character. Every two hours after that, go to the same spot. Sooner or later, the puppy will get the idea. All it takes is patience and how ready you are because bringing home a new dog to the house will take responsibility. The hardest part is just until the puppy gets used to the routine. Until then, everything hangs on your commitment to raising a housebroken dog. There are the rescue groups, the animal shelters, and local humane societies for dogs. These have individual preferences about the dogs they take in, which should give you an idea of what to expect in the dogs they shelter. Animal shelter is the way to go when wanting to save a dog's life. Animal shelters don t necessarily keep track of the dog's history so you can expect surprises as the dog grows old with you. Encourage the pup to come to you and when it does, give the pup treats. The idea is to get the pup get used to the idea of walking with a leash. Do this for a few days until the pup is used to walking with the leash. After a few days the pup will appear comfortable already, hold the leash for short periods of time, but let the pup guide the way.