"It is desire, it is anger, born of the rajas-guna, all-consuming and most sinful. Know this to be the enemy here."
Modern explanation
In the middle of the day, return to this: The thing in front of you is rarely the real cause of your anger. The unmet desire underneath usually is.
Practical application
Before responding to the thing irritating you, draft your reply, wait ten minutes, then re-read it.
Reflection question
What boundary is this anger asking me to set, calmly?