It behooves a prudent person to make trial of everything before arms.

Anything that escalates should be the last option rather than the first satisfying one. Lawyers, ultimatums, formal complaints and public confrontation all have their place, and once used they change the situation permanently, close off the quiet routes and commit both sides to positions. Trying everything else first is not weakness but sequencing.

Before you escalate the thing you are angry about this week, write down what has actually been tried. A direct conversation with the person, in private, asking what happened rather than telling them, is missing from that list far more often than people expect. Keep the harder move available and unused for now.