The heel command positions your dog to walk alongside your left leg and it requires that the dog maintain that position no matter if you slow your pace, increase your pace, run, or zigzag. This is an extremely important command whether you’re simply taking your dog on a walk around the neighborhood or walking your dog through an agility course. A dog that freely trots about an undisciplined course for example, opens itself and its handler to any number of accidents – in particular, tripping. Here's how to teach your dog to heel.  read more »