PETA – “BUY ONE KILL ONE FREE”Four million unadopted dogs are killed in animal shelters every year. PETA firmly believes this is the direct result of people purchasing from profit-seeking breeders instead of adopting dogs from animal shelters. And while most people who buy dogs from breeders don't have evil in their hearts, if they considered becoming personally responsible for the murder of an unadopted dog in a shelter, they would probably think twice. The math is simple: when you buy a dog from a breeder, you kill a dog in a shelter.