[whimsy]

Surely the more expedient and effective reaction is to address it immediately, but calmly - inform the person of your grievance and implore them to alter their behavior, but do so without the anger, as that can damage your relationship.

Or is the facade of anger better?

[philwelch]

No, people respond to displays of anger. And if the other person's convinced you were in the right, it might not even damage the relationship in the long run.