I actually do think that there's a lot of bad pedestrian behavior in the urban hellhole. I don't think there's anything wrong with jaywalking across an empty street*, but my personal rule is that I shouldn't ever cross a street if the driver of a car traveling at an appropriate speed should even have to think about whether they'll need to slow down. In other words, I shouldn't do anything to disrupt the normal flow of traffic.
*Do not try this in Los Angeles.