You walk in find a good hen half eaten, breaks your heart. Gonna fortify this pen like Fort Knox, things go along great for 9 months, you walk out to let the girls free range like you do every morning, look around one of your great buff orphingtons half eaten no idea how the thing got in. So off to Tractor Supply get the necessaries for electric fence, Now you coon or more likely an opossum see what you can do.