As a runner I get to see things in slow motion. I don ’t pass by the world at 65 miles an hour, but at a nice slow pace. Eventually, jogging past property after property, one starts to notice some mighty strange things. Strange house, strange trees, strange vehicles, strange animals, etc. Here are some great examples of strange fences. I haven't spotted all of these myself but I've seen my share (problem is I never take my camera running).
Gates Without Fences
I don't think these are going to do much good.