Yes I know it is illegal and no I have not done it before, but I'd be lying if I wasn't extremely tempted. My motto with flying drones has always been to be safe and responsible, which generally means NEVER flying over people, never going LOS, landing when helis are in the area, and notifying respective ATC's if necessary among a few other things. It seems so unnecessary to completely ban drones from national parks because they "disturb the peace". To a point I can understand that as drones can be fairly irritating to some people, but if nobody is around I really don't see the harm. What is your guys opinion on this?