Had a knock on my door about 25 minutes ago. Man selling Guardian Security... His sales pitch was that they had done all the wiring in these houses (Sonoma) and are offering to pay for all monitoring services if we advertise their sign in the yard. I asked for his permit, and he completely ignored the question and continued with his pitch. I got really uncomfortable when he started asking questions like " how many people live here"... "How many cars are usually parked in the drive way"... And asking if all entry points were monitored... I refused to give him any answer, and told him he should leave. He might have been legit, but he made me uncomfortable enough that I called it in to the non-emergency line. Just giving a heads up to others in the area....