I know this is a very specific example but it never fails to irk me. Part of my commute is down a 4 lane highway (55mph) with a jersey wall in the middle. On both sides there is a paved shoulder that is easily rideable and nearly as wide as the traffic lanes with a continuous rumble strip dividing it from the road. I always ride on that shoulder but several times I have seen cyclists riding in the road to the left of the white line. They don't fully take the lane, but they are in the road nonetheless. I get the whole vehicular cycling thing and believe me I usually adhere to it. But in this instance should common sense not prevail a little bit? When I see this as a driver I always think how dangerous and idiotic it seems. Am I justified in thinking that even though it is not exactly "by the book", one should have the sense to get over on the shoulder to avoid semi trucks and people passing each other at 65mph?