I've certainly had my share of moments when I've been irritated by drivers...
...but then I remember that they are protected inside a reinforced and motorized 5000 lb box, and I'm wearing lycra and a styrofoam brain bowl on a 16 lb bicycle. Since I'm a huge fan of getting home from every ride with my body intact, I really make it a point not to provoke conflicts.
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"Swedish fish. They're protein shaped." - livedarklions