I read somewhere that the 'devil horns' sign has been used for bloody ages in many cultures as a sign to 'ward off the evil eye' - so, despite it being used by metal bands trying to be 'evil', actually the whole idea of the thing was to ward evil off!! I find that faintly amusing...but not as amusing as Gene Simmons trying to trademark it. I think you'll find that you can't trademark something that was used centuries before you were born, Mr Simmons!!! Tw*t!!!