Imagine you’re a dog and you’re terrified of loud, unidentified noised on the Fourth of July in the USA, and that person, who calls themselves your owner and who’s supposed to take care of you, instead of letting you into the house, into the room, under the table, onto their lap–jerks up your head and forces a pill into your throat. Or brings you down on the floor and gives you a painful injection. Would it make sense to you then?

Of course it wouldn’t. If you were a dog, being injected for being scared wouldn’t make a slightest sense to you. Just as wouldn’t being put into sleep and waking up with aching throat, just as wouldn’t being zapped every time you try to say something.

Another thing: the shock collar doesn’t work because it draws the dog’s attention away from the thing it barks at. It works based on the painful or uncomfortable sensation caused by the collar, which the dog sees as the slap across the head or the shout when he does something wrong. The collar makes the dog believe that barking is bad.
And as the shock collar makes sense when teaching the dog where the limits of it’s territory are (because the dog learns that crossing those limits is bad, so he stops), it’s completely out of place when it comes to barking. You can’t teach the dog barking is bad, because barking is necessary for it to communicate. It’s like shouting at the dog, when he wags its tail–doesn’t make sense to me.

Okay. If your dog barks, because he sees another dog outside or because he’s startled by something, maybe the shock collar does make a slight sense. But why didn’t it occur to you that your dog barks because he needs something? Putting a collar to stop it from barking is like putting a collar on a cat in heat to stop it from meowing or on a new-born baby to stop it from crying for food. (Not to mention that for me human baby crying is more annoying than the dog’s barking.)

I have two cats and a dog. When my cat sits on the window’s ledge and starts meowing, I open the window, so that he can see more of the neighborhood or jump onto the roof and have fun, whatever he does there. When my dog barks at other dogs outside the fence, I either ask the person with the other dog to come closer so that they can meet through the fence, or I take him for the walk, so that he can explore the area, too, just like that other dog. And if he sits at the patio and howls to the moon, I go out there and give him a hug. Believe me or not, works like a charm.

Face it. The only reason you want your dog(s) to stop barking is because the sound is loud and annoying, and fulfilling the dog’s need is so troublesome. You can’t pour him water right now, you have to finish the level. You can’t give him the food, you’re busy completing a project. You can’t take him for a walk, you’re too preoccupied with answering to the comment of a person, who doesn’t agree to you.

NO SURGERY IS SAFE OR PAINLESS OR WHATEVER.
I’m studying veterinary medicine right now–meaning I have the latest information possible. Many vets, especially the older ones, will recommend ridiculous treatments or surgeries for two reasons: a) they want to earn more money (I have to unhappily agree that there are way too many vets who do this job only for money), b) they were taught this way during their course of studies–but the technology and science both moved on a lot since then.

But, back to the point. Every and any surgery has its consequences. You can’t say a surgery is painless. For gods’ sakes, the dog’s skin is cut! Until it scars over, it’ll hurt. Maybe the dog won’t show it (because the animals try to not show their pain), but it doesn’t mean the dog doesn’t feel it.
Quite simple surgery is the male cat castration. This is truly the least invasive surgery I’ve ever heard of. And it still hurts–a little, but it does. I don’t know if you ever saw a cat after castration, but I feel obliged to inform you it starts licking the place. This itself is the indication that the cat feels (at least) slight, uncomfortable pain.

And every surgery starts with anesthesia (there are several kinds of that, but let’s skip the details). And EVERY anesthesia is dangerous for an animal. One of my cats stopped breathing after getting the anesthetic and had to be resuscitated for 3 hours until she regained her own breath. My other cat can’t be put under anesthetic at all, because he has a chronic cat aids, so when he got leukemia tumors it was pretty bad and we all prayed for the steroid to work.
Big dogs, what’s more, often have problems during the operation, as it is hard to give them the right dose. If you overdose the anesthetic, you can kill the dog, so the vets prefer to underdose it–but if it’s underdosed, the dog will wake up several times during the surgery, which is a very traumatic experience for the animal.
Anesthetics are also very heavy on the animal’s heart, which often ends up in older dogs dying on the surgery table.

Incision or whole cutting, it all depends on the technique and the vet. Like every surgery, this one, too, can be done in different ways. But, as I said, we’re skipping the details. You seem to think this surgery is uninvading. You couldn’t be more wrong.
This surgery is performed on the dog’s NECK. Even if the dog lies still, it’s very dangerous: one unexpected sound, one twitch of a muscle and the dog is left without a vocal chord or even a carotid. And it’s very rare for the dogs (even the small ones) to lie still the whole time.

Given the above-mentioned information, the vet must be insane to recommend a surgery before even trying any other ways of treating the animal. It is, of course, unless the vet is a greedy son of a…
So, get your facts straight before you speak. And learn to spell.

I was quite surprised to find out that even our local squirrels will do this, and, apparently, other squirrels of all localities.

to prevent barking, you have to let your dog know You are the leader, if so, they wont bark unless emergency.
and there is no point to show those inhumane method in stop barking

check out “dog leadership”