We already have road rage, and supermarket aisle rage, among other forms of anger at being held-up or delayed, so it is no surprise that footpath rage is becoming more manifest… while it’s no doubt a calming thought that we may be the only person on the whole footpath, especially in busy urban centres, not everyone shares that sense of serenity.
Signs of a sidewalk rager include muttering or bumping into others; uncaringly hogging a walking lane; and acting in a hostile manner by staring, giving a “mean face” or approaching others too closely, says Leon James, a psychology professor at the University of Hawaii who studies pedestrian and driver aggression.

