Motley:  It seems these guys (and they're usually males) engage in a game of "chicken".  The will ignore traffic and pedestrian laws and dare drivers to not stop and collide with them.  If drivers in Eugene didn't make hundreds of accomodations for bike riders and pedestrians who are breaking the traffic, bike and pedestrian laws, there would be dozens of auto-bike and auto-pedestrian accidents each day.

I don't want to hurt anyone so I always lose that game of "chicken".  Nearly all drivers do likewise.  Upon ocassion, a driver simply won't see the biker or pedestrian and someone will get hurt.  BTW:  Why do so many bikers ride at night wearing all black and having no lights or reflectors?  Makes less than no sense to me.  It's really frightening to be starting through an intersect (with the green light) and suddenly a black attired spectre flashes across in front of you.