Using a choke chain is what some folk consider a quick fix to a problem dog, which the dog really is no problem. Ugh I cant walk my dog he pulls! There are electronic collars, pinch collars which will do a dog more harm than good. You can pick up a choke chain for very little money and people feel this is the best to use on an unwilling dog. Easy for a person to control that dog! Its suppose to stop dogs from pulling. You would have to known how to really use this through a trained professional. A trainer who uses these strict of measures for the dog that is! I have not seen any of these myself the trainers that is ,though, I have seen plenty of people with these around their dogs necks though! When you think of the choke chain you think of the dog pulling and that sensation it must feel around its neck not very pleasant I would imagine, when it tightens, and the dog lurches forward to go painful as the human is pulling back on it ewwwww!! And if the dogs lurching at other dogs wow all I can think of is pain it having when trying to greet another dog! Not a good training method to teach dogs with!
I would say to whomever had this type collar watch Victoria Stillwell. She has some great techniques and wonderful training methods!