Abused patience turns to fury.

Patience is not endless. When you keep absorbing someone’s carelessness without saying anything, the cost does not disappear; it collects somewhere out of sight. From outside it looks like nothing is wrong, right up until the day it all arrives at once, larger than the moment that set it off. The anger surprises everyone, including you, because nobody watched it being built.

If you have been quietly tolerating something, name it now while it is still small enough to say calmly. One plain sentence early costs less than the eruption later. And if someone’s anger at you seems out of proportion, ask what they have been carrying without mentioning it.