Yesterday Tatiana was on a TV commercial shoot in downtown Los Angeles. The area was swarming with homeless people and other wretched-refuse types. Out of the blue she spotted a buck-naked white guy — late 30s to early 40s, good physical shape, relatively attractive — casually walking on a nearby sidewalk, and then waiting at a stop light and crossing the street like any average citizen. Q: “Was he wearing sneakers of flip-flops?” A: “I didn’t notice.”