I will never use a shock collar period!!! Now granted I have wanted to a few times with my Brit, but never will. I guess personal opinion, but have felt that way since they came along. My dogs do stay outside, but they get out and play with the kids all the time. Also, if weather is like it has been, they have spent lots of time inside. With our crazy schedules it is hard to leave them in all the time. That is my two cents Billet.