As am I. I could see it being more of a deterrent or "eye opener" for the aggressor than a shooting aide in a self defense scenario though.

My concealed weapons instructor (local police officer and part of the swat team or what ever they are called) told us while he was in a situation where 2 officers had handguns pulled on someone and he didn't seem to care. Until the red dot from a marksmens rifle was on his chest. He changed his tune shortly after... something makes it a little more real I guess?