It's just painful isn't it? Like that Cesar Millan video with Holly. There is a rescue organization near me, and their training is also abominable, but thankfully not physical.
A friend of mine and her husband got a Rottweiler puppy from a reputable breeder in Pennsylvania. As an adolescent, the dog started to show signs of food aggression. They spoke to the breeder, who was also a 'trainer', who recommended some alpha BS that worsened everything. So he asked them to bring the puppy back for 'boot camp.' They did, and in the meantime my friend was considering returning the puppy to the breeder because her food aggression had gotten so much worse with the advice they'd been given. When they went to see Yuki after 'boot camp,' the dog was visibly frightened of the trainer and my friend couldn't, in good conscience, leave the dog there. So they brought the dog home, and not long after that, this dog -- barely a year old at the time? -- inflicted a
Level 4 bite to my friend when she was turning towards the dog
with the food bowl still in her hand. My friend's other dog intervened and probably protected her from further injury. The dog's anxiety level and aggression over food had gotten so severe with physical punishment that the mere presence of food + human made the dog explode. My friend, a woman, didn't intimidate Yuki enough to suppress her defensive aggression, as the trainer had done (the dog was also better with the husband, who had implemented the 'prescribed' corrections in the beginning). Like Millan's techniques, the dog had been provoked by training from going from growling and anxious over food to a full scale defensive attack.