It can be a nuisance when the guests leave because they ran into one of your electric fences. To stop this at the expense of a little money, before you make a fence for a new exhibit, outline the area with a decoration fence (which are usually at the bottom of the fence list). Make sure it is facing outwards, not towards the exhibit. Otherwise, when you make the fence too close it will build directly over the decoration fence. When you make the normal fence for the exhibit, face it inwards and they should be almost in the same location. Make sure there is a hole in the decorative fence for the entrance to the exhibit. Once this is done, not only will the guests no longer shock themselves but they also will not be crowding the animals. Note: This will not work from the inside. Even with decorative fences inside, the animals will not only be enraged but will still shock themselves by simply trampling it.