Yeah, call me paranoid, thas' just my choice and I am happy with it! You say pah-tay-toe, I say pu-tay-toe.
Yep, I was cutting a 2X4 and there was a sticker on that side that somehow got on it... It was a little damp or something... Blade instantly stopped (it senses flesh or like conductive things) and there was just a little cut in the board. If that had been my finger I would have gotten away with a nasty cut instead of an amputated finger.
-Banti
Edit: I do realize that things like this may not be top priority for some, and most of the time these terrible accidents never happen but it is when they do that I am protecting against!