An uninvited verbal intervention
regarding a strangers' behavior around issues such as sustainability
, global awareness
, or personal liberation
. 'Kaths' are usually gentle, but can be forceful. Typically, 'Kaths' immediately annoy, but they are offered - often courageously, often ridiculously - in the hope that the more reflective come to appreciate their logic.
A mild 'Kath': "Please don't litter
- I don't want to live in your wastebasket".
More forceful: "Take off the veil
!", as, say, in 35C heat, one peddles past a burka
wearer walking well behind a summer-casual-dressed male on the bike path.