Hi,
I've only been harassed once, and then not seriously.
We were camped in a quarry, out of sight, but moved with out checking the line of sight to the road which was pretty empty anyway.
I saw the flash of headlights and heard the engine note change, down a cog, sliding wheels on gravel and it came over to where we were parked.
Kids asleep, one on the front seat, one in a bunk.
Doors slamming - loud voices, obviously alcohol had been consumed.
I shot out of bed to get the keys, but Damn! a kid was on the front seat.
Right out side the door where I was standing, some one started bouncing on the step, and others were bouncing on the bull bar.
In a quiet voice, just loud enough to be heard on the other side of the door, I said "Pass the Winchester and 3 shells".
Being country boys, they knew exactly what was coming, and hightailed out leaving a cloud of dust and flying grit.
Pity about not having any weapon on board, but it worked!
I'm a bit more cautious of late night drinking possibilities now, always check the area for cans/bottles/condoms/needles etc, use extra precaution on warm Friday or Saturday nights.
Some times we will reject a spot for no other reason that 'just doesn't feel right' - nothing else.
Then we will go and find a spot that feels ok, and are much happier, I can't explain the reason, just a gut feeling.
cheers