Interesting example about the explosives. A friend who was a shotfirer says that you are supposed to post notices and inform the neighbours when you are about to commence blasting. However, someone just down the road regularly sets off dozens of ground shaking explosions, right on a busy road, without any such formalities. You can hear these blasts 15 km away in town. Nobody does anything though. I wouldn't like to be driving by when one of these went off. What would you do if you were in a National Park and heard shooting? Rush over to investigate and ask to see their paperwork?