They make shocking collars for dogs

Shock Collars for Dogs are controversial. One reader weighs in on his more humane technique.
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Citronella collars work the same way that bark shock collars do, except that instead of emitting a painful jolt of electricity, they send out a quick and short burst of citronella oil. Dogs don’t fear citronella, nor do they experience pain from it. They simply dislike the smell, and giving them that mildly (though effective) unpleasant experience whenever they disobey a boundary or command is a non-harmful disciplinary tactic that humanely uses negative reinforcement.
is a researcher who worded his opinion on the use of shock collars for dogs in a  this way:
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With an easy-to-follow Training Guide, you and your dog can get started quickly using the PetSafe Bark Control Pet Training System- the effective and humane way to stop your dog from barking excessively. Using six levels of safe yet effective gradual static corrections, the bark control collar is often incorrectly referred to as a shock collar. This innovative collar is easy to operate. Simply place the battery into the receiver collar and attach it around your dog's neck. In order to accommodate most dogs, the bark collar can be adjusted to fit neck sizes from 6"-28". When your dog barks, a warning tone is emitted. If he barks again within 30 seconds, he will receive a mild static correction. If your dog continues to bark, the correction will repeat with a higher intensity. Unlike manual training systems, the PetSafe Bark Control Pet Training System automatically adjusting feature allows the bark collar to be very effective without over correcting your dog. Often times incorrectly called a shock collar, this bark control collar is safe and will not harm your dog as the static correction levels are mild and act as a sufficient deterrent to excessive barking. This safe, effective, and humane method trains your dog when not to bark. Help your dog refrain from excessive barking with the PetSafe Bark Control Pet Training System today! One of the smallest bark control collars available at only 2.3 oz. Automatically progresses through six levels of static correction. Easy to use bark collar, sometimes misrepresented as a "shock collar", is an effective and humane way to correct excessive barking. Safe for use on smaller dogs and effective enough for larger dogs. Automatic shut-off safety feature for when dog continues to bark beyond 15 times. Uses PetSafe RFA-67 6-volt battery module, included. Static correction can be safely turned off without removing the collar. Adjustable bark collar for neck sizes from 6"-28" (pet should be at least 8 lbs.). Here are some significant risk factors that should be kept into consideration before considering to use a shock collar to train dogs.
Photo provided by FlickrThis shows that you clearly don’t understand how dogs learn and it’s no wonder that you have to rely on shock collars to make up for this.
Photo provided by FlickrBefore we get started, let's take a quick look at what dog shock collars are and how they work for training dogs.
Photo provided by Flickr
Behavioural effects of the use of a shock collar during guard dog training of German shepherd dogs were studied. Direct reactions of 32 dogs to 107 shocks showed reactions (lowering of body posture, high pitched yelps, barks and squeals, avoidance, redirection aggression, tongue flicking) that suggest stress or fear and pain. Most of these immediate reactions lasted only a fraction of a second. The behaviour of 16 dogs that had received shocks in the recent past (S-dogs) was compared with the behaviour of 15 control dogs that had received similar training but never had received shocks (C-dogs) in order to investigate possible effects of a longer duration. Only training sessions were used in which no shocks were delivered and the behaviour of the dogs (position of body, tail and ears, and stress-, pain- and aggression-related behaviours) was recorded in a way that enabled comparison between the groups. During free walking on the training grounds S-dogs showed a lower ear posture and more stress-related behaviours than C-dogs. During obedience training and during manwork (i.e. excercises with a would-be criminal) the same differences were found. Even a comparison between the behaviour of C-dogs with that of S-dogs during free walking and obedience exercises in a park showed similar differences. Differences between the two groups of dogs existed in spite of the fact that C-dogs also were trained in a fairly harsh way. A comparison between the behaviour during free walking with that during obedience exercises and manwork, showed that during training more stress signals were shown and ear positions were lower. The conclusions, therefore are, that being trained is stressful, that receiving shocks is a painful experience to dogs, and that the S-dogs evidently have learned that the presence of their owner (or his commands) announces reception of shocks, even outside of the normal training context. This suggests that the welfare of these shocked dogs is at stake, at least in the presence of their owner.PetSpy 1100 Yards Remote Dog Training Shock Collar for Dogs with Beep, Vibration and Electric Shock, Rechargeable and Waterproof E-Collar Trainer