Cause, I got bored. Here's a bit of a story, I guess:

The Robot Gentleman
Once lived a classy happy engineer with big ideas. One day, he wanted a companion. A nice, classy  companion. He built and built and built, all day and night, to bring you a new invention: The Robot Gentleman. Of course, it was still prototype, but he loved it. They had tea parties or whatever gentlemen do. Sadly the project was abandoned when the engineer was killed by griefers. Years went by as the robot decayed in a decaying place. Years and years later, a young little player was playing with redstone, and accidently spilled some into the robots mouth. Suddenly, the robot burst with light (but his left eye didn't). He made a vow to kill all players that come across him, to avenge his creator. (That's including Steve. Good enough theme to make it into the contest?)