A lot of what I'm hearing from the laser sight naysayers is about "looking for the dot", you shouldn't be focusing on the dot, if you are you're doing it wrong. You should be using a laser like a red dot sight - look at the target and superimpose the dot on it - think of it as point shooting with a reference point you can see on the target. If you're doing it right, the laser won't replace your iron sights, it will compliment them.
If you're going to be dumb you'd better be tough. Stupid hurts.