Is it not true that some dogs do require a heavier hand and harsher correction than others? One of the puppy tests I know of is sensitivities, and if the dog does not respond to a sensitive area as well as others, then it may be true that the trainer will need to use stronger and more forceful corrections than normal. So, when this guy is whining about CM "punching" a dog in the throat, what background does he have on the dog? Who knows what corrections were given before; these are problem dogs and I automatically think that the corrections that the owners were using were not sufficient, otherwise, the dog would respond to the correction, as they do to CM. Also who knows what editing was done before this "punch", or what corrections the owners and CM have failed with?