I once observed a young bull encountering an electric fence . After rubbing his shoulder against it a few times and deciding it didn ' t hurt that badly , he proceeded to walk over it . Things went well until the fence reached the penistesticle area . I ' m not sure exactly what got shocked , but that bull never tried to walk over an electric fence again . What usually happens is cows check out the new fence by sniffing at it . Big damp noses make a good electrical connection . Cow then avoids fence . Once they ' re conditioned , you can make a temporary fence by tying a piece of string across an opening . <| sep |> Thanks ! Happy thanksgiving to you too ! <| sep |> I like them more than chaks <| sep |> You on Instagram ? <| sep |> I gave Whoaaaa , Dude ! to ZMR .