They don't call them "bike ninjas" for nothin'...

If a good number of these folks had heard of lights or reflectors, I wouldn't have to spend so many lumens to see and avoid them out there. Runners are probably the worst... No reflective stuff, a firm belief that flat black is a fasnionable color for exercise after sundown, and running against the flow of traffic. That's why my Stella is usually running in "ninja detection mode" on those unlighted sections of trails and back streets.