Took Apollo, our 13 month old dobermann, to a training kennel for 3 weeks while we were on holiday. Basically all we wanted out of the place was to teach him loose lead walking, and to sit square.
When we picked him up he had lost about 10kgs (he weighed 36kg when we dropped him off). The trainer told us he was quite overweight when we dropped him off (A complete lie. People always comented about how good he looed and how muscley he was) When he got home he drank 4L of water! We never took him out the yard for a week after he got home because I have no doubt that if somebody complained about his condition we would have had to answer to the RSPCA he was that bad.
Then we found out how they trained him. Choke the hell out of him until he does what you want. If he doesn't sit straight just kick him, it won't take long for him to learn. If he puts his head in front of you while walking just knee him, he'll learn. We were shocked. He was absolutely terrified and just cowered in a corner at home all the time.
Now, despite all the things this training was supposed to address, he is pulling clothes off the line, chewing everything, digging holes, and peeing everywhere, including in the house. None of which he did prior to this training.
Needless to say he will never be setting foot back in that place again, and to be quite honest, it wouldn't bother me in the least if the place was shut down and charges were laid on the owners and trainers. The whole affair has made me sick to the stomach.