If taking the dog for a walk sees you being dragged along with your pooch calling the shots and setting the pace then the Tug-Preventing Dog Trainer could be just what the doctor - or vet - ordered. Designed to attach between the leash and collar, the device will emit an ultrasonic tone whenever the dog pulls on the leash. To teach the dog to stay in line and associate the sound with pulling on the leash, the volume of the tone increases the harder the dog pulls.

Although the tone is designed to be irritating to dogs, thankfully humans won't have to endure it as the sound emitted from the device is inaudible to us. And as the tone is directed towards the leashed pet and the volume levels can be adjusted manually for dogs with different hearing sensitivities, the disturbance of other nearby pets can be reduced. The device is powered by two AAA batteries, is compatible with any leash and is suitable for all dog breeds and sizes.

The Tug-Preventing Dog Trainer is available from Hammacher Schlemmer for US$39.95, which is a lot cheaper than enrolling your pet in obedience classes and easier than arranging for a visit from Cesar Millan.