i run mine here at home, and i go behind the local store in the back parking lot that is always empty, i dont live in the city so i have tons of places to go.
i take mine to the beach of lake erie, and to the smaller beaches at the creeks, and threw trails that i ride my atv's on.

for the most part they are no loader than a weed eater or lawnmower and if someone is in their house watching tv or something odds are they wont even here them.