Originally Posted by horsecrazygirl13
He has never escaped so im not too worried as long as the fence works. The wire is up to his chest, so how should he come out? And yes, there is only one wire between him and freedom.
Well if you're fence is not working properly and he is testing it it is only a matter of time before he realizes he can push through it, or as DHW stated, if he is grazing under the fence and is spooked for any reason, head comes up, gets zapped, and under the fence he goes. If there is at least another wire at grazing height that scenario would not happen because he would not be able to reach below that other wire. I have known horses to drop their head and run under single wires that only separate paddocks from larger pastures, every experience is training, good or bad.
I have also had deer land on top of my fence and tear it (evidence from deer tracks and struggle marks from it), my horses did not get out because I had another wire there (but they were definitely checking it out), so visually there was still a barrier, and it allowed the electric to still be run the entire fence instead of stopping there, and leaving most of my fence uncharged.
Not saying horses can't be kept in one strand enclosures, but I would only use them temporarily for the reasons stated above.