I don't live on a salmon creek by my gsp ALWAYS found a way to get out if she wanted to bad enough. Even was able to rip a hole in chain link dog run. All this stopped when we put in an underground E fence. Cheap, easy to install, and she learned very fast. Only took one nip and she doesn't even think about going near the fence. I'm sure every dog is different but we are going on 9 months now w/ 0 issues.