ive heard it can ruin a dog having it inside all the time. but we have had my 8 year old lab as a house dog for 4 years now. hes a pretty good house dog and a great hunting dog. now we got a lab puppy last year. he has no desire to retrieve the birds. but i dont think having him in the house was the cause just got a bad dog. but anyway having a puppy in the house blows. he pees and craps in the house. we broke him of that. but he chewed everything up. remotes, furniture, clothes, etc. whining in the night to go outside. if you can get through the puppy stuff you should be fine. he is fine house dog now just no desire to get birds.