Ghost returned?

I don't know if I'm a total believer in ghosts or not, but it's kind of fun to think that MAYBE I have one.  A few months ago, I blogged about my ghost and how a touch light would go on by itself.  Since warmer weather moved in, I unplugged that device to make room for a fan, so "my ghost" hasn't had the ability to turn on the burner.  

Maybe my ghost is amping up on its wanting to be known because I was sitting on the couch (alone - D is at his dad's this week) and my kitchen light turned on.  This is a large flourescent light on the ceiling and only 1 switch turns it on an off.  When I got up to look at the panel, the light switch was flipped to the ON position.  MAYBE the switch was only 1/2 way down and it finally flipped up, but when I recreated it, it was really difficult to get the switch into that position AND when it did and finally *popped* up to ON, it made a very audible CLICK sound.  I heard no sound, but I was 10+ feet away with the TV on.  None of my lights have ever just turned on before.  

Regardless of how it happened, it happened and it gave me goosebumps from head to toe.  I don't know what to believe because it's so strange.  

It could be:

a ghost

switch left 1/2 way

faulty ground wiring

I guess I don't really care why  it's happening.  It's kind of cool thinking that I may have a ghost.  As long as Casper remains friendly, we can be roommates.