There's also the people who get marked to dangerous to approach, the couple of months of doing the census I probably saw about fifty outlined in red on my list, that makes the listing stand out so you don't go there. I ended up having three encounters that got marked in red myself, various reasons people get hostile toward you and I don't intimidate easily so if I was calling my supervisor it was because I could see this individual being dangerous to more naïve younger girls doing the census. The warning signs are all there and they may not pick up on them quick enough, nor should they be put in hostile situations like that. We weren't allowed to carry anything to defend ourselves either, not even mace or pepper spray, we couldn't even have it in our car. There are probably thousands of people like that all across the country who don't get counted, if they tell you to get off their property the most you can do is report they claimed it's their property, mark them as a person one, that I know at least he/she lives there, give race but unknow ethnicity.