Today there was a man or young man knocking on my door. I was wondering if he approached any ones house as well. He was wearing a navy blue hat, tan shorts, and baby blue shirt. I did he him walking on the block of 8500 Brushy Creek. He was knocking left and then came back. When he came back the second time he tried to turn my door knob. Then he just walked away. I should maybe have called the cops. But I do not open the door to anyone, unless I know them.