Minecraft ideas

A great feature would be if you have a number of animals in the wild gathered together or close by each other like sheep or cows chickens and pigs, if you kill one the others should be able to run away a certain number of blocks to make them harder to catch or kill with hand weapons as if they have been shocked or frightened away. They cannot do this if in a fences off area as this would physically stop them. This would not affect predatory animals that attack you when angered like wolves or bees and insects