Just a quick note...make sure the balls are the ones made for dogs...reg. tennis balls have a diff. rubber and abrasive felt on them, after the dog keeps chompping on them it rubs against their teeth and wears them down. Many dogs over time have gotten stubs for teeth, just an FYI.
To change an obsessive behavior of any kind, teach substitute behaviors the dog can use to cope with whatever feelings are prompting the inappropriate behavior. You do this over and over and over until the dog forms habits of switching to the alternative behaviors without your reminders. You avoid creating new problems by doing the switches in a positive manner, so the dog doesn�t develop any fear or other hang-ups about the training or about the new behaviors.
It�s essential to teach multiple alternative behaviors. You don�t want to teach a dog just one new behavior to substitute for the obsession, or you could wind up with a new obsession! Variety is very important.
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