I admit it - I made a mistake. I thought our 11 year old LGD would insure that the 6 month old LGD puppy would not harm the lambs. Not the case. Old dog is sleeping while puppy is chewing on the poor lambs' ears! The stupid lambs don't make a sound while it's happening. We have tried the shock collar, but it can't be on all the time and we have full time jobs and can't monitor all the time. Tomorrow it will be a week since we got the lambs and they've been chewed on almost every day! We don't have a separate place for the puppy. Do I just need to get rid of the lambs? Help!