What are some things you consider before choosing the breeder to buy from? I guess mostly pertaining to purchasing a dog for a pet more than show. I know quality is a huge thing to look at when buying an animal to show or breed. I'm asking because my uncle is looking to buy a puppy or young female dog. I want to make sure I have covered all the bases when he asks for advice regarding things he should ask about or look for when searching breeders. I know you should always ask to see the parents and health certificates of the parents, but what health certificates, specifically? He is interested in a collie or a shetland type dog. I know every breed may be prone to different health conditions. What are some specific things he should avoid when choosing a breeder of these types of dogs? Thanks in advance!