Red Street signs on dirt roads south of Lake Travis seem to be private roads. Rode my DRZ down one and a lady stopped me in a pick up truck to warn me I was fixing to get shot. I pulled off my helment to show her I had more gray hair than her hoping to calm her down. She was very angry and repeated the possiblity of getting shot. Her spose was in the truck and seemed to be embarssed about her outburst but did not stop her from ranting.