FWIW, I think this is a pretty interesting topic, I have a lot of reservations myself about the notion that John Q. Public can go out and buy "out of the box" PP dogs w/o being thoroughly screened by the trainer/broker....I still remember all those "TimberShepherd" ads in those dumb mercenary magazines like Soldier of Fortune I used to read when I was a kid...they are pretty creepy to think about now. I guess those TimberShepherd ads have been replaced by Thunderbird Ovcharkas and stuff. Not sure which would be worse for a dumb owner to have. At least the hybrid would probably run off and go feral...