I am slightly afraid of spiders, and very afraid of big crowds, talking in public, talking with mentally ill people (nothing wrong with them, though), E.T. and el chupacabras, (don't laugh
), ghosts, darkness...
And sharp things and fire, only when someone is threatening me with them (thankfully no one does that to me anymore
)
I used to be scared of my old computer (back when I first got one).