No dog ever comes with a guarantee, but a dog bred from a show dog breeder, comes with health certificates on both parents. CERF for eyes, OFA for hips and elbows, heart clearances etc.
That's for my breed, others may have different tests.
You did.
I love dog shows, I love show dogs. But in the realm of talking about responsible breeding, constant attention needs to be paid to keeping the breeds strong, healthy, and capable of doing the job the standard describes.
We (my wife & I) try to do just that. Problems do sometimes materialize. The best you can do is take the dog back; help the owner if they opt to keep the dog (paying the medical bills up to the purchase price); and, most importantly, don't repeat the breeding.
Show dogs have had their share of problems, and getting a pup from a 'show dog' breeder is no guarantee that it does not come with faults caused by their breeding.
agreed.
It's a tough job trying to design the perfect dog, and people have made a lot of mistakes in trying... That's all.
The sport is probably doomed anyway. Zoning laws, leash laws (try doing water training at a state park), and cloning (I'm serious) will probably kill traditional breeding.