I heard through the grapevine that some "city kids" had moved out into our area, and the first thing that the parents did was to buy four wheelers for them. Must not have placed any limits on their use either.
One landowner had his fences cut and the kids were tearing up the place, scaring livestock. One of the four-wheelers ran out of gas, they kids rode out on the other quads and the landowner used their absence as a good time to send some lead toward the machine. The gas can wasn't any help when they returned.
Expensive lesson, but they never came back.
I own and enjoy quads, but one thing that makes me mad is when riders see your gravel road and decide to tear it up. Especially when you know the owners have land on which they can ride.
