1. Respect each other’s space.
Most campsites have designated spaces. The markings can often be hard to see, especially if conditions are poor (ie darkness, rain, or both). If you come across someone who is over the line by an inch, there is no reason to unfairly encroach on another campers spot in retaliation. Certainly don’t pull out their guy lines on the ridgeline stake to their shelter. This actually happened to me on this trip.
Campgrounds, holiday parks, caravan parks can be tight, but make sure you set up where your campsite is not bearing down on the next in an obnoxious way.