If you happened upon a new puppy, you are probably in the midst of training. Don’t chew on this, don’t go to the bathroom inside, and don’t maul everything that moves. Once they get to an age where they can walk out on a leash, it’s a whole new game, and if you aren’t ready, they’re going to be pulling you along instead of walking with you.
The PatentoPet DOG-e-Walk is an attachment that goes onto the end of the leash clip, and hooks onto your pooch’s collar. When your pup pulls on the lead, then an ultrasonic signal that is inaudible to the human ear is emitted to stop your dog in their tracks without hurting them. This is a $36 purchase, so hopefully it’s a strong enough go-between for the leash and the dog should they happen to spot a squirrel.