My neighbors built a fence. I told them when they were doing it that they were probably over the property line and that they should have a survey done. I basically got the finger and was told to spend my own money. So I had one done. Initially they thought it was part of my home improvement project and we're cheering the surveyors along. Then you can see just about the moment they realize that they are about to pay rent on a fence they put on my property.