Our neighbor told me today about her dog's encounter with my electric fence. Dog spotted our birds out and about and headed straight for them. Before anything could happen, however, dog tangled with the electric fence......let out a yip, did a u-turn and came straight back home. She says the dog ignores them now has never been back.
So that is the response you want. Imagine, however, no fence........dog got in, chased and maybe killed some birds.........experience was fun and games. Now I'd have a problem with a dog always hanging around causing trouble and if the neighbor wasn't any help.......a potential conflict with them.
But all that is moot. The fence did it's job.
That outcome seems to repeat over and over. With dogs and other predators, with nothing but a physical barrier, if even that.....there is absolutely nothing to stop a predator and they have nothing to lose by trying to get it. An electric fence changes that. They have no clue what it was that hurt so bad, but most are smart enough to stop testing it once they know what it offers.
I have a small are fenced off for some horses and although it is a simple single strand poly tape fence, it works to keep the kids in. The hardest part about it is to lead the horses through the gate to put them in. They know where the boundary is and start pulling back when they get near it. They have felt the wrath of that fence and want no part of it.