The Meaning of Life, the Universe, and Everything.
I caught an Enderman doing something in my house in the basement area. He attacked me but the dogs chased him off until he phased right through a wall. But he left behind curiously enough a grass block. Was he trying to plant something? I don't know. But I don't like strange humanoid creatures just teleporting inside my home whenever they want. Gonna look into teleport proofing the house soon.