New Mob Behavior - Timid

Right now most mobs fall under 3 behavioral categories - Passive, Neutral, or Hostile. There should be a behavior that has mobs run away from the player and other humanoids on sight, reflecting animal behavior in real life. Some currently existing mobs this behavior could apply to are rabbits, fish, stray cats, and ocelots - and some currently existing passive mobs could become Timid if you run toward them or attack while near them. The Timid behavior would add a lot more realism to the world of Minecraft, as well as provide fun opportunities to chase stuff around!