One of my riding mentors counseled me to expect a pickup truck around any corner blocking my lane and be ready to stop appropriately... I have actually had that happen to me... coming around a corner, my "spidey sense" was on full mode, and lo and behold a pickup truck was trying to make a u-turn in the middle of a turn... twice!! Ya just never know what to expect. :blink:The most important rule I ever learned from biking books was 'You must be able to stop in the distance you can see'.