We groom many cockers, and almost all of them are rather mean...not a big fan of cockers. Though, I've met several very sweet ones, so it's not the entire breed I guess. Like Twisterdog said...ruined by popularity.

I feel bad for the poor dog. I think maybe the new owner should have asked for more then one opinion. I don't think that what she did was the entire cause of the dogs total aggression either.

I don't know anything about the trainer we have at Petco. She doesn't even train at the store. I go to Petsmart for training. And I like them, but STILL.......if I had a dog with serious aggression problems, I wouldn't necessarily go with their advice without consulting others (actually I think I'd come to Pet Talk first! )