So your dogs like to chew each other's underground dog fence collar and you are concerned that they might hurt themselves or damage the unit. Here are some tips to break them of the habit.
Some dogs when they play with each other like to grab a hold of their playmate’s collar. In exceptional circumstance, with repeated very rough play a shock collar could get damaged. If you suspect this will be a problem, you can break your dogs of the habit pretty quickly and easily.
You want to get some unpleasant tasting spray for dog training (available at any petfood store and most larger supermarkets and WalMarts in the pet section). We like the bitter apple because it is all natural, so won’t hurt your dog, just give them a bad taste if they bite the collar (spray some on your tongue and give it a try). Spray the bitter apple on the underground dog fence collars. Once dry, put the collar back on the dog.
Now when they are rough-housing, the dogs will get a very unpleasant taste when they put a collar in their mouth. If you reapply the spray every couple of days, pretty soon the dogs will begin to associate the bitter apple with the electric dog fence collar and will stop trying to chew on the collar even if you stop applying the bitter apple.