I'm not saying it's okay for the dogs to snap and make a butt load of noise, but when it comes to rescue dogs that have been abused and hurt than you need to work with them just like you would a troubled child that's been abused. Them brats get a million chances until the kill someone or rob a bank or knock up their 13 year old girlfriend. Why don't the dogs get the benefit? At least the dogs are cute.
(cf_hardcore won't let me link individual comments as far as I can tell, so you'll just have to root around for it.)