i did not go because 1. i have been experiencing, for the first time in my life, the glory that is shin splints and 2. i had a doctor's appointment at the time that is normally reserved for the prerequisite pre-run negotiations which (quite frequently) actually lead to an actual run.
i placated my sense of guilt by telling myself i'd go for a long walk. this i did not do. instead, i bought and ate a very large slice of very rich cake. the cake wasn't nearly as satisfying as it ought to have been and thus i felt vindicated. if the cake had rocked, i'd most likely have felt terrible. behold, the human psyche: a veritable minefield.