OMG GUYS. I shall try and calm down while I type. This is what happened. I was building a police station. I went to go to my house for cobble, and me and my friends saw something in the distance, and thought it was Steve (Because I was third player), and our best house was burning and was on fire. So after that the entity jumped off the building, and it somehow disquised as another player in the game when that player was right behind me! We kicked the player, and the entity was still there. It jumped off the building and we killed it. It didnt respawn so we know it wasnt the other player. When we killed it, we started looking at the damage done and it looks like serious burns. I will upload pictures VERY soon. If you dont beilieve me Im sorry you wasted your time here.