Actually In my SERIOUS opinion, you should go become best friends with the dude, say to him like, "Thanks for looking out, me and my family appreciate it (don't tell the dumb fuck to knock on my door 1st, before you dial 911) That will definitely work, place him in a God like Savior mode (kinda like when you got pulled over for doing 30 in a 25 MPH zone, and you got a joint in the ashtray and you want to be best buddies with that cop that's in your face). Tell him he's wonderful, and he will leave you the fuck alone. Guaranteed