Has anyone every used an invisable fence around coop to keep dogs away? I posted yesterday about my Malamute getting into the run and getting one of our chickens, I am so worried he will go back for more even though he would not go anywhere near it today because he sill knew he was in trouble but I don't trust him now. I don't want to use electric fence because of the kids so was thinking about the invisable fencing to keep him away from them and wanted to get some feedback. Thanks