The Secret Job of the Cemetery Fence

When I was a little girl, I climbed through a barbed wire fence to pet the big shaggy horse on the other side. I was probably five or six; I can only remember it vaguely. But, I walked right up to the large animal and placed my hand on its nose. Two seconds later I was running fast for the fence with a mad horse on my tail. The pounding hoof beats behind me were like thunder shaking the ground. It must have shaken it, because I fell. The next thing I can remember was a boy much older than me, jumping over the fence and picking me up. He carried me home, dirty and crying to my mother. I was informed, that fences are there for a reason. “What reason?” I asked innocently. She looked down at me seriously. “Fences are made to keep things in or to keep things out.” She said “But they are there to keep you safe, so don’t climb through any more fences!”
To this day I don’t know why that has stuck with me. Fences are there for a reason.
I have always since that day, wondered about all of the fences I have seen, and just what they were there for. Some fences keep animals in, or little girls out. Ok, I get that. Some fences are there to create privacy, or to keep people from walking in someone else’s yard. I get that too. Most fences seem to have a very practical reason for being where they are. But yesterday I noticed a fence that didn’t seem to make sense to me. At a first glance it made perfect sense, but upon further inspection I realized something had to be wrong with the picture. I was waiting for my mom to get gas, sitting there in the passenger seat of her van, staring strait ahead in a blissful trance of exhaustion. Directly ahead of me, across the road there was a cemetery. It was very old and had a sign with old worn letters that stated: “Catlin Cemetery 1845”. The tomb stones were old and white, standing in the tall grass leaning at odd angles like white bones popping up out of the ground. I was just sitting calmly just looking at it when I noticed the fence. It was one of those chain link fences about eight feet tall, with the barbed wire on the top. At first I would assume that the fence is there to keep vandals out. It seemed like a perfectly good reason for a fence to surround an old cemetery. But then I noticed the angle that the barbed wire was leaning. Instead of leaning outward, the top section leans inward. This to me would suggest trying to keep something in, and not out. If you walked up to the fence from the outside, you could certainly climb up and get in, but it would much more difficult to get out. The barbed wire leans over the top of the fence at an angle, making it almost impossible to climb from inside the cemetery. So, my question is an odd one. What exactly is the fence trying to keep in? My only guess is that the fence is there to keep the Zombies in. Why else would it be there?