content: What a fucking rambler.  That he is. He put up a sign that said "Smile, you're on closed-caption video" and the guy hasn't bothered them for a year. His point was about fear of the unknown, and how he might have done things on their property that he now fears could be used against him. It's a good idea, don't let this kind of person know that you've already been recording them. Let them strut around thinking they're getting away with things, then let them know you already have dirt on them. Call their bluff. It's good advice with something like a dashcam, let them deny their fault and lie (recording that as well), then bring out your evidence. Don't ever tell them you've got footage, because then they'll tailor their lies with that accommodated.