How long should we suffer a person?

Reading 2 Tim 2:14, 23-24 this morning made me think:

"14 Remind the people of these facts, and solemnly charge them in the presence of God to avoid petty controversy over words, which does no good, and ruins those who listen."

"23 But have nothing to do with foolish and ignorant speculations, since you know that they produce strife and give birth to quarrels. 24 The servant of the Lord must not participate in quarrels, but must be kind to everyone, skilled in teaching, patient and tolerant when wronged."

It is imperative that we show the fruit of the Spirit within us in all aspects of life as it shows our maturity. But that mean that we have to suffer a person indefinitely?

How long should we impress on someone that they need to change before walking away and dusting our sandals off, so to speak?

Do you have a measure that you personally use and would like to share; like the number of occurrences you spoke with the person on the matter or the person's general teachability or their age or the level of sin caused by their view, etc.?