Quote Originally Posted by tulip View Post
I've found that dogs in invisible fence yards are pretty aggressive. It's way better to actually train your dog than to just zap it with an invisible fence. I swear they are more aggressive for some reason.
Absolutely! If you got zapped every time you approached a jogger or a cyclist, you'd learn pretty quickly to hate joggers and cyclists. When I was volunteering at the shelter, we saw some pretty screwed-up pups who had learned to hate or fear things that they associated with the fence zap.

And then there were the super-smart ones who figured out how to defeat it....