[dennisj]

Several years ago in an obedience class I was attending the trainer discussed this issue. I never walk my dogs loose so I've never had this problem. She suggested walking the dog on a long 30 ft. light nylon training lead. When the dog starts to run off, wait till she is near the end of the lead and give a strong NO command then hold on tight when the lead stops the dog. She said it wouldn't take too long for the dog to understand that your command is to be obeyed.