[Christien]

Around here, "stay right except to pass" is a courtesy, not a law. They do have signs that say slower traffic keep to the right, but nobody pays attention. It's frustrating as all hell, even when you get behind them, not tailgating, but close enough to let them know you want to pass, with the middle/right lane empty, and they do nothing. If they're paying that little attention to their driving, what other things are they going to miss? I usually don't wait that long before passing on the right, but I'm no stranger to flashing my high-beams a bit. Never close enough for a bump, though - if I'm anywhere near, I'm not looking at their car, I'm looking ahead of it, either through it or around it. Lessons learned from the track.