Is this, perhaps, the secret to avoiding irritation (which provokes a host of vices): to simply remove oneself from a situation and observe it as a third party might? It certainly doesn't hurt. I must endeavor to try this in future occasions of unpleasantness.
Angelus Silesius writes,
Niemand hat seinen Stand so hoch und groß gemacht
Als eine Seel die ihr Gemüth in Ruh gebracht.