Any way of thinking that removes blame from the fellows who have offended you, will help you manage your anger.
a) Their genes and upbringing and circumstances cause their behaviour – it is not their fault.
b) It is my past wrong karma that is causing them to hurt me now, it is not their fault.
c) It is all part God’s plan to teach me and help me evolve, it is not their fault.
d) It is their ignorance that is causing them to hurt me, it is not their fault.
Basically, you find some other reason to blame and you forgive their offensive behaviour.
Essentially, you are removing their kartRtva or their doer-ship.
Of course Yudhisthira had a different approach of kSama – I forgive them because anger is my worst enemy, it doesn’t matter whose fault it is. It is clear in many places before he talks to Bhishma that he assigns kartRtva to himself and others, but he forgives others as a self-discipline but not himself.
Others see anger as one of the thieves or enemies, poised to come in the way of their gnyAna or true knowledge.
Some just put it down to the ‘ bad mood ‘ of the other guy.
What is your strategy?