When we first moved to our farm we posted NO TRESPASSING signs at the driveway gate, and kept the gate closed and locked. To our utter amazement strangers seemed to think nothing of parking their cars and climbing over the gate to get to the house. So when they knock on the door, I grab my shotgun out of the closet and answer their knocks with the gun casually resting in the crook of my arm. That tends to back them right off the porch, lol. I am often home alone during the day and I don't know who that is knocking at my door, KWIM?
The back end of our property (what we call the Way Back Field) has a large pond and, unfortunately a house on the other side of the fence. The people who live there apparently think it is OK to come over and fish in the pond whenever they please. I don't really mind that so much except for the fact that the horses are sometimes in the Way Back and I am uncomfortable having strangers around them. The potential for an unpleasant accident is too much. Plus these people are mighty fond of shooting off their weapons at a target that is mighty close to the property line, and they are not the best marksmen. My husband has asked them politely to reposition the target and to refrain from shooting/coming onto the property when the horses are down by the pond but you know how people are.