take the lane... put yourself where you are most safe... remove the option for the passing cars to make your situation less safe....
These are the extremes to which some cyclists will go to reduce the incidence of close passes. Totally unnecessary if you use the full lane by default. That way motorists realize while they still have plenty of time and space to safely adjust that they need to change lanes to pass, or slow down until they can.
It's really just heartbreaking sometimes.
http://www.khou.com/news/neighborhood-news/Local-cyclist-on-a-mission-to-teach-safety-to-drivers-254668521.html
http://www.khou.com/news/neighborhood-news/Local-cyclist-on-a-mission-to-teach-safety-to-drivers-254668521.html