When I was a little girl my family had a three legged cat. He got around just as well as if he had four legs. Climbed trees and chased the neighbors dog.
I have a deaf and partially blind dauschund. He is a Double Dapple. I adopted him from a county shelter. He is the same as a lethal white in collie breeds. Inscrupulous, or just unknowledgeable, breeders breed dogs like him. They are more valuable, due to their colors, but most are born with serious defects. The ones that live, which are very, very few, almost always end up deaf, or/and blind. Many of them have serious heart defects, but Dapple Dan's heart is fine.
Animal control brought Dan into the shelter as a stray. He was there for more than a month before I adopted him. While he definetly attracts attention everywhere I take him, there are alot of challenges in owning a dog like him. He can't go outside without someone with him, he is small enough to slip through the squares on the fences and we worry that he wouldn't be able to find his way home. Sometimes when you take him outside, you see him getting confused and he just starts running all crazy like. You can't scold him for things like getting in the trash. He can't hear you tell him "NO!" about anything (it doesn't stop me from saying it though
). Discipline and training is the biggest problem. Luckily, he is a good dog, but he does take a LOT more attention than your average dog!