This is a default response for many people--irked customers, angry bosses, disappointed colleagues. It's easy to go into high dudgeon (in fact, low dudgeon isn't even in the dictionary, it's always 'high').
The thing is: it doesn't work. It rarely succeeds in accomplishing much, and it makes you unhappy at the same time.
What if you took it out of your toolbox of responses?
What if, just like becoming a cannibal or painting your face green, you eliminated righteous indignation as an option in your list of responses to various situations, no matter how unfair? What if the people you work with weren't permitted to indulge? Just think of how much more you'd get done and how much calmer everything would be.