Firestarter

So I was watching the game. It was on late. I noticed the room seemed to get dim. Then I heard a buzz/crackling noise. I looked up and saw some smoke comming out of one of the CFLs in the ceiling fan. It stopped after I turned it off, but the room smelled for a while after. Here's the smoke-stained socket.
Ya gotta wonder what might have happened if no one was in the room.