About twenty years ago, our family adopted a young male golden out of generic puppy mill stock, from an acquaintance family that was leaving the area. It bounced around appearing happy, our kids even named it lucky. It had some odd behavior, even did a small growl, snip at me. It was bounding around the yard during a kids birthday party, then froze solid and its hackles went up a few feet from one of the kids. No one noticed, I called it over by me, it seemed to snap out of its little world and bided me and went into a kennel. My wife didnt like the optics of me shooting it, so she took it to get euthanized the next day. Im not at all saying that would happen out of good field stock, only that breeding for confirmation might leave out important traits?