My dog Jake is a Lab Terrier Mix. He is about 8 years old. We've taken him to the vet and he's not in pain. This has also been going on ever since we got him (8 years ago from the APL). No matter how much we yell, no matter how much we put him outside, no matter what, he never stops. The only peace we get is when he is eating, sleeping, or outside. And we can't have him outside all the time.

A shock collar would be the only option I could think of and I refuse to use one. They're both expensive and CRUEL! Please help!