When is their dignity in silence?

There is dignity in silence when someone accuses you of doing something that you did not do. Normally if someone yells at you and claims you did a certain thing that you know for a fact you did not do you would yell back and increase the angry tone of the mood. It takes a big person to calmly reply to an angry accusation. It's satisfying proving them wrong and being calm about it. It is even more satisfying when a stubborn person accuses you of something because they won't give up even when you present clear facts and evidence against their claim. They will still try to be right even after you've proven them wrong.