I now have an 8' block wall that separates me from the townhouses behind me. Went through hell to get an exception on the covenance, but made it happen. Back porch light is on a motion sensor, and I have tall junipers that line the fence on 2 sides. (1st purpose is a wind break) But I wouldn't want to try to crawl through them as tore up as I got planting them. Last but not least From the back of the yard I have 3/4 crushed gravel for 15' as an RV pad. (Try walking quietly on that!) So I feel like my backyard security is pretty good at this point. Still looking at any vulnerabilities, but I don't want to bunker myself in either. So everything is a trade off.