"Jerk!" the runner said as he sidestepped from the bike path to the sidewalk. It's a 4 lane, busy city street and I'm riding with the traffic while 3 runners are approaching me. The first two hop on the sidewalk as I get closer, the third does so reluctantly, and as I ride by him he calls out "Jerk!". Presumably I interfered with his plans of using the bike path instead of the more uneven surface of the sidewalk. His insult is wrong on so many levels that I won't waste time listing them. However, I'd like to ask if any of you would have bothered to stop to explain to him why there is a bike lane and a sidewalk and why the two are separate.