I usually avoid MUPs unless it's a low traffic time, such as 2am or winter. As bad as roads are, MUPs are totally nuts when they get busy. People walking on the left, right, or even dead center. Oblivious kids zig zagging left to right across both lanes. Dog walkers with extendo-leashes. 2 abreast strollers. People who apparently learned how to bicycle that same day. Beaters with no brakes.
Motor vehicle traffic seems to "separate the wheat from the chaff" because cyclists you see on the street tend to be a little more competent, although I have certainly seen some notable exceptions.
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Bring the pain.