Hello there,...
My front yard pond was plagued with ROGUE dogs that would wander around and come in for a cool dip.. I was left with freaked out fish, mucked up water and crunched marginals and lillies.
I installed a fido shock fence and NOT A SINGLE return after they were zapped !!!
I built a pond for a neighbor and her chow chow was doing the same thing. I let her borrow the fence. 2 shocks later-- the dog won't even go near the area !!!! If a ball is thrown there--- it's left....the fence was installed for several months and now is removed. The chow remembers 
but does not know it's gone.
