Esmeralda - I can understand worrying about people abusing choke collars. Anytime they are used past the training room door or session is a misuse. Liken it to a noose around a neck.
On that note, however.. I will say that I do not find a choke chain being used in obedience as cruel. The following long rambling post is just my opinion and I know there are many different schools of thought when it comes to obedience training for dogs, right down to how a choker is positioned.
I used to think the choker was cruel myself until learning from an obedience teacher how they are to be properly used. I have found out that when used correctly, the choke collar should only snap once before the dog understands and even then it is the sound that startles the dog into submission - the loud rattle and scraping noise the chain makes - not something the dog feels. This is because when used properly a choke collar doesn't actually constrict on the neck of the dog unless the dog fights it. It will feel a bit of a tug but the collar won't even have time to completely close before you release. It feels more of a tug pulling on a normal collar and leash
It just all depends on how the collar is put on the dogs neck and how the "snap" is done. If the collar sits high on the neck and the snap is done at the proper angle with a quick release, the dog feels nothing more than a slight tug upwards and just hears the quick sharp noise. If the collar is low on the dogs neck or the trainer snaps without an immediate release, or snaps by pulling back and not straight up, the dog does have a constriction on it's neck. Just like what would happen if the dog was wearing a choker and pulling forward with all it's might - it would act like a noose.
For dogs that do not respond to a choker (most of them it's because of the dogs fur or shape of the head and neck) I would only use the soft muzzle type gentle leaders. Those have been very effective in training - especially with dogs that have a natural instinct to pull ahead like sled dogs (my Samoyed was an obedience school flunky until we got the gentle leader - with that lion's mane of fur there was no collar in the world that would work with her without getting lost in her hair!..lol) These soft "muzzles" actually just close the dogs mouth when it pulls on it's leash and dogs don't like to walk with their mouths closed so it causes them to slow down and not pull. Aren't you glad people don't have a tendancy to walk with their mouths open? ick!
Some dogs also don't respond to passive methods like the clicker or the watergun because of how they were allowed to become at home. By passive I mean that the dog really doesn't understand where the noise/water is coming from.. in it's mind, even though it sees the watergun in your hand, it's not you that is causing it to happen.
This is going to sound weird to non dog people but you have to be sure that you have the "alpha dog" status in your house or the dogs will be hell to train. Dogs that respond well to clickers or things like that already are submissive dogs. You may not realize that your sweet little pooh dog that just loves you to death and licks you all over thinks he is in charge of you until you go and try to demonstate any dominant behavior towards him like making him walk at your pace instead of you having to walk at his. These little dudes can wrap us around their little paws without us knowing it...lol
Personally though, I dount I could ever train using the collars with the prongs inside, but that's just me and each dog is a different case.. just like kids. (and no I don't use pronged collars or chokers on kids!

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