Actually I was in a helicopter that buzzed a flying field once last summer. I was sitting in the back of an R44, as we flew east towards the town of Sheboygan Falls there is the SHARKS (Sheboygan Area Radio Kontrol) Field just to the north, about 200 yards of the road we were flying over. We could clearly see the people on the ground, the planes, everything at less than 200 feet. No one was flying at the time. We could tell because they were cutting the grass and those standing at the flightline were clearly more interested in waving to us the anything that might have been in the air. I'm not taking the heli pilots side in either case, but learned that unlike airplanes that have to adhere to flight plans, altitude mins, etc. The helicopter can fly almost anywhere. In the end it's up to the pilot on both sides. If he's cool and understands the fact your plane could kill him, and you the same. Then there's no reason we can't both enjoy the one last free thing left on this planet. Yes there will always be some jerks out there, however I have meet more corperate jet pilots in the last six years that find rc flying amazing. Some even fly them selves.