One CC breeder admitted to experimenting with a litter. I think the breeder regretted it because they were heavily questioned AND it wouldn't be that hard to figure out what litter it was.
Scenario:
Which is more important, genetics or socialization to make a stable dog?
Solution:
On a repeat breeding, do not socialize puppies whatsoever, instead give the bare minimum of food and vet care
Result:
All puppies from both litters turned out to be perfect. Won't say what litter was the experiment out of respect to the owners of said puppies, but I am sure it isn't hard to figure out.
And no, I won't say who, don't want to be accused of contributing to any gossip mills. It was said on an open forum and I am sure it still exists there.