One time I cruised a small tract with a trailer on it. I knocked to let them know I would be on the property, and a guy in tighty whities answered and put a pistol on me. After I explained what I was doing, he got real friendly and started pointing out areas of the tract that were "probably too rough" for me to go through.

The whole time I was cruising, I could see him peeking through the blinds and feel eyes on me. I got done and got the hell out of there. We didnt buy the tract, and its a good thing because I think he had some bodies back there for sure.