I get so mad when people won't respond to "On your left!" First I check--do they have earphones in? No? Then I repeat myself, "I am passing on your left!" They keep riding side by side. So I pull around, and sometimes I say, "That Means You Pull Over To The Right!" Sometimes I restrain myself.

Best so far was the roller blader to the left of a cyclist. They're cruising along together, side by side, but roller blader guy is swinging his arms as if he were sprinting. So what little bit of path was left is now covered by his swinging arms. I yell "On your left! Please control your arms!" Fortunately, he got it. I could just see an ill-timed swing taking us both out.

Again--why I almost never ride the north lakefront path...